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Neutrino Physics & Energy

Neutrino physics, detection, and emerging energy applications. From neutrino oscillations (Nobel Prize 2015) and coherent elastic neutrino-nucleus scattering (C…

Physics / Energy
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Results for "neutrino oscillation detection energy"

1,043,478 total results — showing 20 from PubMed + NASA ADS + arXiv + OpenAlex
PubMed 2021 Nov

Electron-beam energy reconstruction for neutrino oscillation measurements.

Khachatryan M, Papadopoulou A, Ashkenazi A, Hauenstein F, Nambrath A, Hrnjic A, Weinstein L B, Hen O, Piasetzky E, Betancourt M, Dytman S, Mahn K, Coloma P

Nature

Show Abstract

Neutrinos exist in one of three types or 'flavours'-electron, muon and tau neutrinos-and oscillate from one flavour to another when propagating through space. This phenomena is one of the few that cannot be described using the standard model of particle physics (reviewed in ref. 1), and so its experimental study can provide new insight into the nature of our Universe (reviewed in ref. 2). Neutrinos oscillate as a function of their propagation distance (L) divided by their energy (E). Therefore, experiments extract oscillation parameters by measuring their energy distribution at different locations. As accelerator-based oscillation experiments cannot directly measure E, the interpretation of these experiments relies heavily on phenomenological models of neutrino-nucleus interactions to infer E. Here we exploit the similarity of electron-nucleus and neutrino-nucleus interactions, and use electron scattering data with known beam energies to test energy reconstruction methods and interaction models. We find that even in simple interactions where no pions are detected, only a small fraction of events reconstruct to the correct incident energy. More importantly, widely used interaction models reproduce the reconstructed energy distribution only qualitatively and the quality of the reproduction varies strongly with beam energy. This shows both the need and the pathway to improve current models to meet the requirements of next-generation, high-precision experiments such as Hyper-Kamiokande (Japan)3 and DUNE (USA)4.

PubMed Review 2007 Mar

Antineutrino science by KamLAND.

Suzuki Atsuto

Proceedings of the Japan Academy. Series B, Physical and biological sciences

Show Abstract

KamLAND measured the ν̄ e's flux from distant nuclear reactors, and found fewer events than expected from standard assumptions about ν̄ e propagation at the 99.998% confidence level (C.L.). The observed energy spectrum disagrees with the expected spectral shape at 99.6% C.L., and prefers the distortion from neutrino oscillation effects. A two-flavor oscillation analysis of the data from KamLAND and solar neutrino experiments with CPT invariance, yields [Formula: see text] eV(2) and [Formula: see text]. All solutions to the solar neutrino problem except for the large mixing angle (LMA) region are excluded. KamLAND succeeded in detecting geoneutrinos produced by the decays of (238)U and (232)Th within the Earth. The total observed number of 4.5 to 54.2, assuming a Th/U mass concentration ratio of 3.9 is consistent with 19 predicted by geophysical models. This detection allows better estimation of the abundances and distributions of radioactive elements in the Earth, and of the Earth's overall heat budget.

PubMed 2022 Sep

QED radiative corrections for accelerator neutrinos.

Tomalak Oleksandr, Chen Qing, Hill Richard J, McFarland Kevin S

Nature communications

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Neutrino oscillation experiments at accelerator energies aim to establish charge-parity violation in the neutrino sector by measuring the energy-dependent rate of νe appearance and νμ disappearance in a νμ beam. These experiments can precisely measure νμ cross sections at near detectors, but νe cross sections are poorly constrained and require theoretical inputs. In particular, quantum electrodynamics radiative corrections are different for electrons and muons. These corrections are proportional to the small quantum electrodynamics coupling α ≈ 1/137; however, the large separation of scales between the neutrino energy and the proton mass (~GeV), and the electron mass and soft-photon detection thresholds (~MeV) introduces large logarithms in the perturbative expansion. The resulting flavor differences exceed the percent-level experimental precision and depend on nonperturbative hadronic structure. We establish a factorization theorem for exclusive charged-current (anti)neutrino scattering cross sections representing them as a product of two factors. The first factor is flavor universal; it depends on hadronic and nuclear structure and can be constrained by high-statistics νμ data. The second factor is non-universal and contains logarithmic enhancements, but can be calculated exactly in perturbation theory. For charged-current elastic scattering, we demonstrate the cancellation of uncertainties in the predicted ratio of νe and νμ cross sections. We point out the potential impact of non-collinear energetic photons and the distortion of the visible lepton spectra, and provide precise predictions for inclusive observables.

PubMed 2013 Nov

Measurement of neutrino oscillation parameters from muon neutrino disappearance with an off-axis beam.

Abe K, Adam J, Aihara H, Akiri T, Andreopoulos C, Aoki S, Ariga A, Ariga T, Assylbekov S, Autiero D, Barbi M, Barker G J, Barr G, Bass M, Batkiewicz M, Bay F, Bentham S W, Berardi V, Berger B E, Berkman S, Bertram I, Bhadra S, Blaszczyk F D M, Blondel A, Bojechko C, Bordoni S, Boyd S B, Brailsford D, Bravar A, Bronner C, Buchanan N, Calland R G, Caravaca Rodríguez J, Cartwright S L, Castillo R, Catanesi M G, Cervera A, Cherdack D, Christodoulou G, Clifton A, Coleman J, Coleman S J, Collazuol G, Connolly K, Cremonesi L, Curioni A, Dabrowska A, Danko I, Das R, Davis S, de Perio P, De Rosa G, Dealtry T, Dennis S R, Densham C, Di Lodovico F, Di Luise S, Drapier O, Duboyski T, Duffy K, Dufour F, Dumarchez J, Dytman S, Dziewiecki M, Emery S, Ereditato A, Escudero L, Finch A J, Frank E, Friend M, Fujii Y, Fukuda Y, Furmanski A P, Galymov V, Gaudin A, Giffin S, Giganti C, Gilje K, Golan T, Gomez-Cadenas J J, Gonin M, Grant N, Gudin D, Hadley D R, Haesler A, Haigh M D, Hamilton P, Hansen D, Hara T, Hartz M, Hasegawa T, Hastings N C, Hayato Y, Hearty C, Helmer R L, Hierholzer M, Hignight J, Hillairet A, Himmel A, Hiraki T, Hirota S, Holeczek J, Horikawa S, Huang K, Ichikawa A K, Ieki K, Ieva M, Ikeda M, Imber J, Insler J, Irvine T J, Ishida T, Ishii T, Ives S J, Iyogi K, Izmaylov A, Jacob A, Jamieson B, Johnson R A, Jo J H, Jonsson P, Joo K K, Jung C K, Kaboth A C, Kajita T, Kakuno H, Kameda J, Kanazawa Y, Karlen D, Karpikov I, Kearns E, Khabibullin M, Khotjantsev A, Kielczewska D, Kikawa T, Kilinski A, Kim J, Kim S B, Kisiel J, Kitching P, Kobayashi T, Kogan G, Kolaceke A, Konaka A, Kormos L L, Korzenev A, Koseki K, Koshio Y, Kreslo I, Kropp W, Kubo H, Kudenko Y, Kumaratunga S, Kurjata R, Kutter T, Lagoda J, Laihem K, Laveder M, Lawe M, Lazos M, Lee K P, Licciardi C, Lim I T, Lindner T, Lister C, Litchfield R P, Longhin A, Lopez G D, Ludovici L, Macaire M, Magaletti L, Mahn K, Malek M, Manly S, Marino A D, Marteau J, Martin J F, Maruyama T, Marzec J, Masliah P, Mathie E L, Matveev V, Mavrokoridis K, Mazzucato E, McCarthy M, McCauley N, McFarland K S, McGrew C, Metelko C, Mijakowski P, Miller C A, Minamino A, Mineev O, Mine S, Missert A, Miura M, Monfregola L, Moriyama S, Mueller Th A, Murakami A, Murdoch M, Murphy S, Myslik J, Nagasaki T, Nakadaira T, Nakahata M, Nakai T, Nakamura K, Nakayama S, Nakaya T, Nakayoshi K, Naples D, Nielsen C, Nirkko M, Nishikawa K, Nishimura Y, O'Keeffe H M, Ohta R, Okumura K, Okusawa T, Oryszczak W, Oser S M, Otani M, Owen R A, Oyama Y, Pac M Y, Palladino V, Paolone V, Payne D, Pearce G F, Perevozchikov O, Perkin J D, Petrov Y, Pinzon Guerra E S, Pistillo C, Plonski P, Poplawska E, Popov B, Posiadala M, Poutissou J-M, Poutissou R, Przewlocki P, Quilain B, Radicioni E, Ratoff P N, Ravonel M, Rayner M A M, Redij A, Reeves M, Reinherz-Aronis E, Retiere F, Robert A, Rodrigues P A, Rondio E, Roth S, Rubbia A, Ruterbories D, Sacco R, Sakashita K, Sánchez F, Sato F, Scantamburlo E, Scholberg K, Schwehr J, Scott M, Seiya Y, Sekiguchi T, Sekiya H, Sgalaberna D, Shiozawa M, Short S, Shustrov Y, Sinclair P, Smith B, Smith R J, Smy M, Sobczyk J T, Sobel H, Sorel M, Southwell L, Stamoulis P, Steinmann J, Still B, Suda Y, Suzuki A, Suzuki K, Suzuki S Y, Suzuki Y, Szeglowski T, Tacik R, Tada M, Takahashi S, Takeda A, Takeuchi Y, Tanaka H K, Tanaka H A, Tanaka M M, Taylor I J, Terhorst D, Terri R, Thompson L F, Thorley A, Tobayama S, Toki W, Tomura T, Totsuka Y, Touramanis C, Tsukamoto T, Tzanov M, Uchida Y, Ueno K, Vacheret A, Vagins M, Vasseur G, Wachala T, Waldron A V, Walter C W, Wark D, Wascko M O, Weber A, Wendell R, Wilkes R J, Wilking M J, Wilkinson C, Williamson Z, Wilson J R, Wilson R J, Wongjirad T, Yamada Y, Yamamoto K, Yanagisawa C, Yen S, Yershov N, Yokoyama M, Yuan T, Zalewska A, Zalipska J, Zambelli L, Zaremba K, Ziembicki M, Zimmerman E D, Zito M, Zmuda J

Physical review letters

Show Abstract

The T2K Collaboration reports a precision measurement of muon neutrino disappearance with an off-axis neutrino beam with a peak energy of 0.6 GeV. Near detector measurements are used to constrain the neutrino flux and cross section parameters. The Super-Kamiokande far detector, which is 295 km downstream of the neutrino production target, collected data corresponding to 3.01×10(20) protons on target. In the absence of neutrino oscillations, 205±17 (syst) events are expected to be detected while only 58 muon neutrino event candidates are observed. A fit to the neutrino rate and energy spectrum, assuming three neutrino flavors and normal mass hierarchy yields a best-fit mixing angle sin2(θ23)=0.514±0.082 and mass splitting |Δm(32)(2)|=2.44(-0.15)(+0.17)×10(-3) eV2/c4. Our result corresponds to the maximal oscillation disappearance probability.

PubMed 2022 07

Scintillation light detection in the 6-m drift-length ProtoDUNE Dual Phase liquid argon TPC.

Abud A Abed, Abi B, Acciarri R, Acero M A, Adames M R, Adamov G, Adamowski M, Adams D, Adinolfi M, Aduszkiewicz A, Aguilar J, Ahmad Z, Ahmed J, Aimard B, Ali-Mohammadzadeh B, Alion T, Allison K, Monsalve S Alonso, AlRashed M, Alt C, Alton A, Alvarez R, Amedo P, Anderson J, Andreopoulos C, Andreotti M, Andrews M, Andrianala F, Andringa S, Anfimov N, Ankowski A, Antoniassi M, Antonova M, Antoshkin A, Antusch S, Aranda-Fernandez A, Arellano L, Arnold L O, Arroyave M A, Asaadi J, Asquith L, Aurisano A, Aushev V, Autiero D, Lara V Ayala, Ayala-Torres M, Azfar F, Back A, Back H, Back J J, Backhouse C, Bagaturia I, Bagby L, Balashov N, Balasubramanian S, Baldi P, Baller B, Bambah B, Barao F, Barenboim G, Alzas P Barham, Barker G, Barkhouse W, Barnes C, Barr G, Monarca J Barranco, Barros A, Barros N, Barrow J L, Basharina-Freshville A, Bashyal A, Basque V, Batchelor C, Chagas E Batista das, Battat J B R, Battisti F, Bay F, Bazetto M C Q, Alba J L L Bazo, Beacom J F, Bechetoille E, Behera B, Beigbeder C, Bellantoni L, Bellettini G, Bellini V, Beltramello O, Benekos N, Montiel C Benitez, Neves F Bento, Berger J, Berkman S, Bernardini P, Berner R M, Bersani A, Bertolucci S, Betancourt M, Rodríguez A Betancur, Bevan A, Bezawada Y, Bezerra T J C, Bhardwaj A, Bhatnagar V, Bhattacharjee M, Bhattarai D, Bhuller S, Bhuyan B, Biagi S, Bian J, Biassoni M, Biery K, Bilki B, Bishai M, Bitadze A, Blake A, Blaszczyk F, Blazey G C, Blucher E, Boissevain J, Bolognesi S, Bolton T, Bomben L, Bonesini M, Bongrand M, Bonilla-Diaz C, Bonini F, Booth A, Boran F, Bordoni S, Borkum A, Bostan N, Bour P, Bourgeois C, Boyden D, Bracinik J, Braga D, Brailsford D, Branca A, Brandt A, Bremer J, Breton D, Brew C, Brice S J, Brizzolari C, Bromberg C, Brooke J, Bross A, Brunetti G, Brunetti M, Buchanan N, Budd H, Butorov I, Cagnoli I, Cai T, Caiulo D, Calabrese R, Calafiura P, Calcutt J, Calin M, Calvez S, Calvo E, Caminata A, Campanelli M, Caratelli D, Carber D, Carceller J C, Carini G, Carlus B, Carneiro M F, Carniti P, Terrazas I Caro, Carranza H, Carroll T, Forero J F Castaño, Castillo A, Castromonte C, Catano-Mur E, Cattadori C, Cavalier F, Cavallaro G, Cavanna F, Centro S, Cerati G, Cervelli A, Villanueva A Cervera, Chalifour M, Chappell A, Chardonnet E, Charitonidis N, Chatterjee A, Chattopadhyay S, Neyra M S S Chavarry, Chen H, Chen M, Chen Y, Chen Z, Chen-Wishart Z, Cheon Y, Cherdack D, Chi C, Childress S, Chirco R, Chiriacescu A, Chisnall G, Cho K, Choate S, Chokheli D, Chong P S, Christensen A, Christian D, Christodoulou G, Chukanov A, Chung M, Church E, Cicero V, Clarke P, Cline G, Coan T E, Cocco A G, Coelho J A B, Colton N, Conley E, Conley R, Conrad J, Convery M, Copello S, Cova P, Cremaldi L, Cremonesi L, Crespo-Anadón J I, Crisler M, Cristaldo E, Crnkovic J, Cross R, Cudd A, Cuesta C, Cui Y, Cussans D, Dalager O, da Motta H, Da Silva Peres L, David C, David Q, Davies G S, Davini S, Dawson J, De K, De S, Debbins P, De Bonis I, Decowski M P, De Gouvêa A, De Holanda P C, De Icaza Astiz I L, Deisting A, De Jong P, Delbart A, Delepine D, Delgado M, Dell'Acqua A, Delmonte N, De Lurgio P, de Mello Neto J R T, DeMuth D M, Dennis S, Densham C, Deptuch G W, De Roeck A, De Romeri V, De Souza G, Devi R, Dharmapalan R, Dias M, Diaz F, Díaz J S, Domizio S Di, Giulio L Di, Ding P, Noto L Di, Dirkx G, Distefano C, Diurba R, Diwan M, Djurcic Z, Doering D, Dolan S, Dolek F, Dolinski M, Domine L, Donon Y, Douglas D, Douillet D, Dragone A, Drake G, Drielsma F, Duarte L, Duchesneau D, Duffy K, Dunne P, Dutta B, Duyang H, Dvornikov O, Dwyer D, Dyshkant A, Eads M, Earle A, Edmunds D, Eisch J, Emberger L, Emery S, Englezos P, Ereditato A, Erjavec T, Escobar C, Eurin G, Evans J J, Ewart E, Ezeribe A C, Fahey K, Falcone A, Fani' M, Farnese C, Farzan Y, Fedoseev D, Felix J, Feng Y, Fernandez-Martinez E, Menendez P Fernandez, Morales M Fernandez, Ferraro F, Fields L, Filip P, Filthaut F, Fiorini M, Fischer V, Fitzpatrick R S, Flanagan W, Fleming B, Flight R, Fogarty S, Foreman W, Fowler J, Fox W, Franc J, Francis K, Franco D, Freeman J, Freestone J, Fried J, Friedland A, Robayo F Fuentes, Fuess S, Furic I K, Furman K, Furmanski A P, Gabrielli A, Gago A, Gallagher H, Gallas A, Gallego-Ros A, Gallice N, Galymov V, Gamberini E, Gamble T, Ganacim F, Gandhi R, Gandrajula R, Gao F, Gao S, Garcia-Gamez D, García-Peris M Á, Gardiner S, Gastler D, Gauvreau J, Ge G, Geffroy N, Gelli B, Gendotti A, Gent S, Ghorbani-Moghaddam Z, Giammaria P, Giammaria T, Giangiacomi N, Gibin D, Gil-Botella I, Gilligan S, Girerd C, Giri A K, Gnani D, Gogota O, Gold M, Gollapinni S, Gollwitzer K, Gomes R A, Bermeo L V Gomez, Fajardo L S Gomez, Gonnella F, Gonzalez-Diaz D, Gonzalez-Lopez M, Goodman M C, Goodwin O, Goswami S, Gotti C, Goudzovski E, Grace C, Gran R, Granados E, Granger P, Grant A, Grant C, Gratieri D, Green P, Greenler L, Greer J, Grenard J, Griffith W C, Groh M, Grudzinski J, Grzelak K, Gu W, Guardincerri E, Guarino V, Guarise M, Guenette R, Guerard E, Guerzoni M, Guffanti D, Guglielmi A, Guo B, Gupta A, Gupta V, Guthikonda K K, Gutierrez R, Guzowski P, Guzzo M M, Gwon S, Ha C, Haaf K, Habig A, Hadavand H, Haenni R, Hahn A, Haiston J, Hamacher-Baumann P, Hamernik T, Hamilton P, Han J, Harris D A, Hartnell J, Hartnett T, Harton J, Hasegawa T, Hasnip C, Hatcher R, Hatfield K W, Hatzikoutelis A, Hayes C, Hayrapetyan K, Hays J, Hazen E, He M, Heavey A, Heeger K M, Heise J, Henry S, Morquecho M A Hernandez, Herner K, Hewes J, Hilgenberg C, Hill T, Hillier S J, Himmel A, Hinkle E, Hirsch L R, Ho J, Hoff J, Holin A, Hoppe E, Horton-Smith G A, Hostert M, Hourlier A, Howard B, Howell R, Hoyos J, Hristova I, Hronek M S, Huang J, Hulcher Z, Iles G, Ilic N, Iliescu A M, Illingworth R, Ingratta G, Ioannisian A, Irwin B, Isenhower L, Itay R, Jackson C M, Jain V, James E, Jang W, Jargowsky B, Jediny F, Jena D, Jeong Y S, Jesús-Valls C, Ji X, Jiang L, Jiménez S, Jipa A, Johnson R, Johnson W, Johnston N, Jones B, Jones S, Judah M, Jung C K, Junk T, Jwa Y, Kabirnezhad M, Kaboth A, Kadenko I, Kakorin I, Kalitkina A, Kalra D, Kamiya F, Kaneshige N, Kaplan D M, Karagiorgi G, Karaman G, Karcher A, Karolak M, Karyotakis Y, Kasai S, Kasetti S P, Kashur L, Kazaryan N, Kearns E, Keener P, Kelly K J, Kemp E, Kemularia O, Ketchum W, Kettell S H, Khabibullin M, Khotjantsev A, Khvedelidze A, Kim D, King B, Kirby B, Kirby M, Klein J, Klustova A, Kobilarcik T, Koehler K, Koerner L W, Koh D H, Kohn S, Koller P P, Kolupaeva L, Korablev D, Kordosky M, Kosc T, Kose U, Kostelecký V A, Kothekar K, Kralik R, Kreczko L, Krennrich F, Kreslo I, Kropp W, Kroupova T, Kubota S, Kudenko Y, Kudryavtsev V A, Kulagin S, Kumar J, Kumar P, Kunze P, Kurita N, Kuruppu C, Kus V, Kutter T, Kvasnicka J, Kwak D, Lambert A, Land B, Lane C E, Lang K, Langford T, Langstaff M, Larkin J, Lasorak P, Last D, Laundrie A, Laurenti G, Lawrence A, Lazanu I, LaZur R, Lazzaroni M, Le T, Leardini S, Learned J, LeBrun P, LeCompte T, Lee C, Lee S Y, Miotto G Lehmann, Lehnert R, de Oliveira M A Leigui, Leitner M, Lepin L M, Li S W, Li Y, Liao H, Lin C S, Lin Q, Lin S, Lineros R A, Ling J, Lister A, Littlejohn B R, Liu J, Liu Y, Lockwitz S, Loew T, Lokajicek M, Lomidze I, Long K, Lord T, LoSecco J M, Louis W C, Lu X-G, Luk K B, Lunday B, Luo X, Luppi E, Lux T, Luzio V P, Maalmi J, MacFarlane D, Machado A A, Machado P, Macias C T, Macier J R, Maddalena A, Madera A, Madigan P, Magill S, Mahn K, Maio A, Major A, Maloney J A, Mandrioli G, Mandujano R C, Maneira J, Manenti L, Manly S, Mann A, Manolopoulos K, Plata M Manrique, Manyam V N, Manzanillas L, Marchan M, Marchionni A, Marciano W, Marfatia D, Mariani C, Maricic J, Marie R, Marinho F, Marino A D, Marsden D, Marshak M, Marshall C, Marshall J, Marteau J, Martín-Albo J, Martinez N, Caicedo D A Martinez, Miravé P Martínez, Martynenko S, Mascagna V, Mason K, Mastbaum A, Matichard F, Matsuno S, Matthews J, Mauger C, Mauri N, Mavrokoridis K, Mawby I, Mazza R, Mazzacane A, Mazzucato E, McAskill T, McCluskey E, McConkey N, McFarland K S, McGrew C, McNab A, Mefodiev A, Mehta P, Melas P, Mena O, Mendez H, Mendez P, Méndez D P, Menegolli A, Meng G, Messier M D, Metcalf W, Mettler T, Mewes M, Meyer H, Miao T, Michna G, Miedema T, Mikola V, Milincic R, Miller G, Miller W, Mills J, Mineev O, Minotti A, Miranda O G, Miryala S, Mishra C S, Mishra S R, Mislivec A, Mitchell M, Mladenov D, Mocioiu I, Moffat K, Moggi N, Mohanta R, Mohayai T A, Mokhov N, Molina J, Bueno L Molina, Montagna E, Montanari A, Montanari C, Montanari D, Zetina L M Montañno, Moon S H, Mooney M, Moor A F, Moreno D, Moretti D, Morris C, Mossey C, Mote M, Motuk E, Moura C A, Mousseau J, Mouster G, Mu W, Mualem L, Mueller J, Muether M, Mufson S, Muheim F, Muir A, Mulhearn M, Munford D, Muramatsu H, Murphy S, Musser J, Nachtman J, Nagu S, Nalbandyan M, Nandakumar R, Naples D, Narita S, Nath A, Navrer-Agasson A, Nayak N, Nebot-Guinot M, Negishi K, Nelson J K, Nesbit J, Nessi M, Newbold D, Newcomer M, Newton H, Nichol R, Nicolas-Arnaldos F, Nikolica A, Niner E, Nishimura K, Norman A, Norrick A, Northrop R, Novella P, Nowak J A, Oberling M, Ochoa-Ricoux J, Olivier A, Olshevskiy A, Onel Y, Onishchuk Y, Ott J, Pagani L, Palacio G, Palamara O, Palestini S, Paley J M, Pallavicini M, Palomares C, Vazquez W Panduro, Pantic E, Paolone V, Papadimitriou V, Papaleo R, Papanestis A, Paramesvaran S, Parke S, Parozzi E, Parsa Z, Parvu M, Pascoli S, Pasqualini L, Pasternak J, Pater J, Patrick C, Patrizii L, Patterson R B, Patton S J, Patzak T, Paudel A, Paulos B, Paulucci L, Pavlovic Z, Pawloski G, Payne D, Pec V, Peeters S J M, Perez A Pena, Pennacchio E, Penzo A, Peres O L G, Perry J, Pershey D, Pessina G, Petrillo G, Petta C, Petti R, Pia V, Piastra F, Pickering L, Pietropaolo F, Pimentel V L, Pinaroli G, Plows K, Plunkett R, Poling R, Pompa F, Pons X, Poonthottathil N, Poppi F, Pordes S, Porter J, Potekhin M, Potenza R, Potukuchi B V K S, Pozimski J, Pozzato M, Prakash S, Prakash T, Prest M, Prince S, Psihas F, Pugnere D, Qian X, Raaf J L, Radeka V, Rademacker J, Radics B, Rafique A, Raguzin E, Rai M, Rajaoalisoa M, Rakhno I, Rakotonandrasana A, Rakotondravohitra L, Rameika R, Delgado M A Ramirez, Ramson B, Rappoldi A, Raselli G, Ratoff P, Raut S, Razakamiandra R F, Rea E M, Real J S, Rebel B, Rechenmacher R, Reggiani-Guzzo M, Reichenbacher J, Reitzner S D, Sfar H Rejeb, Renshaw A, Rescia S, Resnati F, Ribas M, Riboldi S, Riccio C, Riccobene G, Rice L C J, Ricol J S, Rigamonti A, Rigaut Y, Rincón E V, Ritchie-Yates H, Rivera D, Robert A, Rochester L, Roda M, Rodrigues P, Alonso M J Rodriguez, Bonilla E Rodriguez, Rondon J Rodriguez, Rosauro-Alcaraz S, Rosenberg M, Rosier P, Roskovec B, Rossella M, Rossi M, Rout J, Roy P, Rubbia A, Rubbia C, Russell B, Ruterbories D, Rybnikov A, Saa-Hernandez A, Saakyan R, Sacerdoti S, Safford T, Sahu N, Sakashita K, Sala P, Samios N, Samoylov O, Sanchez M C, Sandberg V, Sanders D A, Sankey D, Santana S, Santos-Maldonado M, Saoulidou N, Sapienza P, Sarasty C, Sarcevic I, Savage G, Savinov V, Scaramelli A, Scarff A, Scarpelli A, Schefke T, Schellman H, Schifano S, Schlabach P, Schmitz D, Schneider A W, Scholberg K, Schukraft A, Segreto E, Selyunin A, Senise C R, Sensenig J, Sergi A, Sgalaberna D, Shaevitz M H, Shafaq S, Shaker F, Shamma M, Sharankova R, Sharma H R, Sharma R, Sharma R K, Shaw T, Shchablo K, Shepherd-Themistocleous C, Sheshukov A, Shin S, Shoemaker I, Shooltz D, Shrock R, Siegel H, Simard L, Sinclair J, Sinev G, Singh J, Singh J, Singh L, Singh P, Singh V, Sipos R, Sippach F W, Sirri G, Sitraka A, Siyeon K, Skarpaas K, Smith A, Smith E, Smith P, Smolik J, Smy M, Snider E, Snopok P, Snowden-Ifft D, Nunes M Soares, Sobel H, Soderberg M, Sokolov S, Salinas C J Solano, Söldner-Rembold S, Soleti S R, Solomey N, Solovov V, Sondheim W E, Sorel M, Sotnikov A, Soto-Oton J, Ugaldi F A Soto, Sousa A, Soustruznik K, Spagliardi F, Spanu M, Spitz J, Spooner N J C, Spurgeon K, Stancari M, Stanco L, Stanford C, Stein R, Steiner H M, Lisbôa A F Steklain, Stewart J, Stillwell B, Stock J, Stocker F, Stokes T, Strait M, Strauss T, Strigari L, Stuart A, Suarez J G, Sunción J M Suárez, Sullivan H, Summers D, Surdo A, Susic V, Suter L, Sutera C M, Svoboda R, Szczerbinska B, Szelc A M, Tanaka H, Tang S, Tapia A, Oregui B Tapia, Tapper A, Tariq S, Tarpara E, Tata N, Tatar E, Tayloe R, Teklu A M, Tennessen P, Tenti M, Terao K, Ternes C A, Terranova F, Testera G, Thakore T, Thea A, Thompson J L, Thorn C, Timm S C, Tishchenko V, Tomassetti L, Tonazzo A, Torbunov D, Torti M, Tortola M, Tortorici F, Tosi N, Totani D, Toups M, Touramanis C, Travaglini R, Trevor J, Trilov S, Trzaska W H, Tsai Y, Tsai Y-T, Tsamalaidze Z, Tsang K V, Tsverava N, Tufanli S, Tull C, Tyley E, Tzanov M, Uboldi L, Uchida M A, Urheim J, Usher T, Uzunyan S, Vagins M R, Vahle P, Valder S, Valdiviesso G D A, Valencia E, Valentim R, Vallari Z, Vallazza E, Valle J W F, Vallecorsa S, Berg R Van, de Water R G Van, Forero D Vanegas, Vannerom D, Varanini F, Oliva D Vargas, Varner G, Vasel J, Vasina S, Vasseur G, Vaughan N, Vaziri K, Ventura S, Verdugo A, Vergani S, Vermeulen M A, Verzocchi M, Vicenzi M, de Souza H Vieira, Vignoli C, Vilela C, Viren B, Vrba T, Wachala T, Waldron A V, Wallbank M, Wallis C, Wang H, Wang J, Wang L, Wang M H L S, Wang X, Wang Y, Wang Y, Warburton K, Warner D, Wascko M O, Waters D, Watson A, Wawrowska K, Weatherly P, Weber A, Weber M, Wei H, Weinstein A, Wenman D, Wetstein M, White A, Whitehead L H, Whittington D, Wilking M J, Wilkinson A, Wilkinson C, Williams Z, Wilson F, Wilson R J, Wisniewski W, Wolcott J, Wongjirad T, Wood A, Wood K, Worcester E, Worcester M, Wresilo K, Wret C, Wu W, Wu W, Xiao Y, Xie F, Yaeggy B, Yandel E, Yang G, Yang K, Yang T, Yankelevich A, Yershov N, Yonehara K, Yoon Y S, Young T, Yu B, Yu H, Yu H, Yu J, Yu Y, Yuan W, Zaki R, Zalesak J, Zambelli L, Zamorano B, Zani A, Zazueta L, Zeller G P, Zennamo J, Zeug K, Zhang C, Zhang S, Zhang Y, Zhao M, Zhivun E, Zhu G, Zimmerman E D, Zucchelli S, Zuklin J, Zutshi V, Zwaska R

The European physical journal. C, Particles and fields

Show Abstract

DUNE is a dual-site experiment for long-baseline neutrino oscillation studies, neutrino astrophysics and nucleon decay searches. ProtoDUNE Dual Phase (DP) is a 6  ×  6  ×  6 m 3 liquid argon time-projection-chamber (LArTPC) that recorded cosmic-muon data at the CERN Neutrino Platform in 2019-2020 as a prototype of the DUNE Far Detector. Charged particles propagating through the LArTPC produce ionization and scintillation light. The scintillation light signal in these detectors can provide the trigger for non-beam events. In addition, it adds precise timing capabilities and improves the calorimetry measurements. In ProtoDUNE-DP, scintillation and electroluminescence light produced by cosmic muons in the LArTPC is collected by photomultiplier tubes placed up to 7 m away from the ionizing track. In this paper, the ProtoDUNE-DP photon detection system performance is evaluated with a particular focus on the different wavelength shifters, such as PEN and TPB, and the use of Xe-doped LAr, considering its future use in giant LArTPCs. The scintillation light production and propagation processes are analyzed and a comparison of simulation to data is performed, improving understanding of the liquid argon properties.

PubMed 2013 Aug

Measurement of atmospheric neutrino oscillations with IceCube.

Aartsen M G, Abbasi R, Abdou Y, Ackermann M, Adams J, Aguilar J A, Ahlers M, Altmann D, Auffenberg J, Bai X, Baker M, Barwick S W, Baum V, Bay R, Beatty J J, Bechet S, Becker Tjus J, Becker K-H, Bell M, Benabderrahmane M L, Benzvi S, Berdermann J, Berghaus P, Berley D, Bernardini E, Bernhard A, Bertrand D, Besson D Z, Binder G, Bindig D, Bissok M, Blaufuss E, Blumenthal J, Boersma D J, Bohaichuk S, Bohm C, Bose D, Böser S, Botner O, Brayeur L, Bretz H-P, Brown A M, Bruijn R, Brunner J, Carson M, Casey J, Casier M, Chirkin D, Christov A, Christy B, Clark K, Clevermann F, Coenders S, Cohen S, Cowen D F, Cruz Silva A H, Danninger M, Daughhetee J, Davis J C, De Clercq C, De Ridder S, Desiati P, de With M, DeYoung T, Díaz-Vélez J C, Dunkman M, Eagan R, Eberhardt B, Eisch J, Ellsworth R W, Euler S, Evenson P A, Fadiran O, Fazely A R, Fedynitch A, Feintzeig J, Feusels T, Filimonov K, Finley C, Fischer-Wasels T, Flis S, Franckowiak A, Franke R, Frantzen K, Fuchs T, Gaisser T K, Gallagher J, Gerhardt L, Gladstone L, Glüsenkamp T, Goldschmidt A, Golup G, Gonzalez J G, Goodman J A, Góra D, Grandmont D T, Grant D, Groß A, Ha C, Haj Ismail A, Hallen P, Hallgren A, Halzen F, Hanson K, Heereman D, Heinen D, Helbing K, Hellauer R, Hickford S, Hill G C, Hoffman K D, Hoffmann R, Homeier A, Hoshina K, Huelsnitz W, Hulth P O, Hultqvist K, Hussain S, Ishihara A, Jacobi E, Jacobsen J, Jagielski K, Japaridze G S, Jero K, Jlelati O, Kaminsky B, Kappes A, Karg T, Karle A, Kelley J L, Kiryluk J, Kislat F, Kläs J, Klein S R, Köhne J-H, Kohnen G, Kolanoski H, Köpke L, Kopper C, Kopper S, Koskinen D J, Kowalski M, Krasberg M, Krings K, Kroll G, Kunnen J, Kurahashi N, Kuwabara T, Labare M, Landsman H, Larson M J, Lesiak-Bzdak M, Leuermann M, Leute J, Lünemann J, Madsen J, Maruyama R, Mase K, Matis H S, McNally F, Meagher K, Merck M, Mészáros P, Meures T, Miarecki S, Middell E, Milke N, Miller J, Mohrmann L, Montaruli T, Morse R, Nahnhauer R, Naumann U, Niederhausen H, Nowicki S C, Nygren D R, Obertacke A, Odrowski S, Olivas A, Olivo M, O'Murchadha A, Palazzo A, Paul L, Pepper J A, Pérez de los Heros C, Pfendner C, Pieloth D, Pinat E, Pirk N, Posselt J, Price P B, Przybylski G T, Rädel L, Rameez M, Rawlins K, Redl P, Reimann R, Resconi E, Rhode W, Ribordy M, Richman M, Riedel B, Rodrigues J P, Rott C, Ruhe T, Ruzybayev B, Ryckbosch D, Saba S M, Salameh T, Sander H-G, Santander M, Sarkar S, Schatto K, Scheel M, Scheriau F, Schmidt T, Schmitz M, Schoenen S, Schöneberg S, Schönwald A, Schukraft A, Schulte L, Schulz O, Seckel D, Sestayo Y, Seunarine S, Sheremata C, Smith M W E, Soldin D, Spiczak G M, Spiering C, Stamatikos M, Stanev T, Stasik A, Stezelberger T, Stokstad R G, Stößl A, Strahler E A, Ström R, Sullivan G W, Taavola H, Taboada I, Tamburro A, Tepe A, Ter-Antonyan S, Tešić G, Tilav S, Toale P A, Toscano S, Usner M, van der Drift D, van Eijndhoven N, Van Overloop A, van Santen J, Vehring M, Voge M, Vraeghe M, Walck C, Waldenmaier T, Wallraff M, Wasserman R, Weaver Ch, Wellons M, Wendt C, Westerhoff S, Whitehorn N, Wiebe K, Wiebusch C H, Williams D R, Wissing H, Wolf M, Wood T R, Woschnagg K, Xu C, Xu D L, Xu X W, Yanez J P, Yodh G, Yoshida S, Zarzhitsky P, Ziemann J, Zierke S, Zoll M

Physical review letters

Show Abstract

We present the first statistically significant detection of neutrino oscillations in the high-energy regime (>20 GeV) from an analysis of IceCube Neutrino Observatory data collected in 2010 and 2011. This measurement is made possible by the low-energy threshold of the DeepCore detector (~20 GeV) and benefits from the use of the IceCube detector as a veto against cosmic-ray-induced muon background. The oscillation signal was detected within a low-energy muon neutrino sample (20-100 GeV) extracted from data collected by DeepCore. A high-energy muon neutrino sample (100 GeV-10 TeV) was extracted from IceCube data to constrain systematic uncertainties. The disappearance of low-energy upward-going muon neutrinos was observed, and the nonoscillation hypothesis is rejected with more than 5σ significance. In a two-neutrino flavor formalism, our data are best described by the atmospheric neutrino oscillation parameters |Δm(32)(2)|=(2.3(-0.5)(+0.6))×10(-3) eV(2) and sin(2)(2θ(23))>0.93, and maximum mixing is favored.

PubMed 2023 Aug

Search for Heavy Neutral Leptons in Decays of W Bosons Using a Dilepton Displaced Vertex in sqrt[s]=13  TeV pp Collisions with the ATLAS Detector.

Aad G, Abbott B, Abbott D C, Abed Abud A, Abeling K, Abhayasinghe D K, Abidi S H, Aboulhorma A, Abramowicz H, Abreu H, Abulaiti Y, Abusleme Hoffman A C, Acharya B S, Achkar B, Adam L, Adam Bourdarios C, Adamczyk L, Adamek L, Addepalli S V, Adelman J, Adiguzel A, Adorni S, Adye T, Affolder A A, Afik Y, Agaras M N, Agarwala J, Aggarwal A, Agheorghiesei C, Aguilar-Saavedra J A, Ahmad A, Ahmadov F, Ahmed W S, Ai X, Aielli G, Aizenberg I, Akbiyik M, Åkesson T P A, Akimov A V, Al Khoury K, Alberghi G L, Albert J, Albicocco P, Alconada Verzini M J, Alderweireldt S, Aleksa M, Aleksandrov I N, Alexa C, Alexopoulos T, Alfonsi A, Alfonsi F, Alhroob M, Ali B, Ali S, Aliev M, Alimonti G, Allaire C, Allbrooke B M M, Allport P P, Aloisio A, Alonso F, Alpigiani C, Alunno Camelia E, Alvarez Estevez M, Alviggi M G, Amaral Coutinho Y, Ambler A, Ambroz L, Amelung C, Amidei D, Amor Dos Santos S P, Amoroso S, Amos K R, Amrouche C S, Ananiev V, Anastopoulos C, Andari N, Andeen T, Anders J K, Andrean S Y, Andreazza A, Angelidakis S, Angerami A, Anisenkov A V, Annovi A, Antel C, Anthony M T, Antipov E, Antonelli M, Antrim D J A, Anulli F, Aoki M, Aparisi Pozo J A, Aparo M A, Aperio Bella L, Appelt C, Aranzabal N, Araujo Ferraz V, Arcangeletti C, Arce A T H, Arena E, Arguin J-F, Argyropoulos S, Arling J-H, Armbruster A J, Arnaez O, Arnold H, Arrubarrena Tame Z P, Artoni G, Asada H, Asai K, Asai S, Asbah N A, Asimakopoulou E M, Assahsah J, Assamagan K, Astalos R, Atkin R J, Atkinson M, Atlay N B, Atmani H, Atmasiddha P A, Augsten K, Auricchio S, Austrup V A, Avner G, Avolio G, Ayoub M K, Azuelos G, Babal D, Bachacou H, Bachas K, Bachiu A, Backman F, Badea A, Bagnaia P, Bahmani M, Bailey A J, Bailey V R, Baines J T, Bakalis C, Baker O K, Bakker P J, Bakos E, Bakshi Gupta D, Balaji S, Balasubramanian R, Baldin E M, Balek P, Ballabene E, Balli F, Baltes L M, Balunas W K, Balz J, Banas E, Bandieramonte M, Bandyopadhyay A, Bansal S, Barak L, Barberio E L, Barberis D, Barbero M, Barbour G, Barends K N, Barillari T, Barisits M-S, Barkeloo J, Barklow T, Barnett R M, Baron P, Baroncelli A, Barone G, Barr A J, Barranco Navarro L, Barreiro F, Barreiro Guimarães da Costa J, Barron U, Barsov S, Bartels F, Bartoldus R, Bartolini G, Barton A E, Bartos P, Basalaev A, Basan A, Baselga M, Bashta I, Bassalat A, Basso M J, Basson C R, Bates R L, Batlamous S, Batley J R, Batool B, Battaglia M, Bauce M, Bauer F, Bauer P, Bayirli A, Beacham J B, Beau T, Beauchemin P H, Becherer F, Bechtle P, Beck H P, Becker K, Becot C, Beddall A J, Bednyakov V A, Bee C P, Beemster L J, Beermann T A, Begalli M, Begel M, Behera A, Behr J K, Beirao Da Cruz E Silva C, Beirer J F, Beisiegel F, Belfkir M, Bella G, Bellagamba L, Bellerive A, Bellos P, Beloborodov K, Belotskiy K, Belyaev N L, Benchekroun D, Benhammou Y, Benjamin D P, Benoit M, Bensinger J R, Bentvelsen S, Beresford L, Beretta M, Berge D, Bergeaas Kuutmann E, Berger N, Bergmann B, Beringer J, Berlendis S, Bernardi G, Bernius C, Bernlochner F U, Berry T, Berta P, Berthold A, Bertram I A, Bessidskaia Bylund O, Bethke S, Betti A, Bevan A J, Bhatta S, Bhattacharya D S, Bhattarai P, Bhopatkar V S, Bi R, Bi R, Bianchi R M, Biebel O, Bielski R, Biesuz N V, Biglietti M, Billoud T R V, Bindi M, Bingul A, Bini C, Biondi S, Biondini A, Birch-Sykes C J, Bird G A, Birman M, Bisanz T, Biswas D, Bitadze A, Bjørke K, Bloch I, Blocker C, Blue A, Blumenschein U, Blumenthal J, Bobbink G J, Bobrovnikov V S, Boehler M, Bogavac D, Bogdanchikov A G, Bohm C, Boisvert V, Bokan P, Bold T, Bomben M, Bona M, Boonekamp M, Booth C D, Borbély A G, Borecka-Bielska H M, Borgna L S, Borissov G, Bortoletto D, Boscherini D, Bosman M, Bossio Sola J D, Bouaouda K, Boudreau J, Bouhova-Thacker E V, Boumediene D, Bouquet R, Boveia A, Boyd J, Boye D, Boyko I R, Bracinik J, Brahimi N, Brandt G, Brandt O, Braren F, Brau B, Brau J E, Breaden Madden W D, Brendlinger K, Brener R, Brenner L, Brenner R, Bressler S, Brickwedde B, Britton D, Britzger D, Brock I, Brooijmans G, Brooks W K, Brost E, Bruckman de Renstrom P A, Brüers B, Bruncko D, Bruni A, Bruni G, Bruschi M, Bruscino N, Bryngemark L, Buanes T, Buat Q, Buchholz P, Buckley A G, Budagov I A, Bugge M K, Bulekov O, Bullard B A, Burdin S, Burgard C D, Burger A M, Burghgrave B, Burr J T P, Burton C D, Burzynski J C, Busch E L, Büscher V, Bussey P J, Butler J M, Buttar C M, Butterworth J M, Buttinger W, Buxo Vazquez C J, Buzykaev A R, Cabras G, Cabrera Urbán S, Caforio D, Cai H, Cai Y, Cairo V M M, Cakir O, Calace N, Calafiura P, Calderini G, Calfayan P, Callea G, Caloba L P, Calvet D, Calvet S, Calvet T P, Calvetti M, Camacho Toro R, Camarda S, Camarero Munoz D, Camarri P, Camerlingo M T, Cameron D, Camincher C, Campanelli M, Camplani A, Canale V, Canesse A, Cano Bret M, Cantero J, Cao Y, Capocasa F, Capua M, Carbone A, Cardarelli R, Cardenas J C J, Cardillo F, Carli T, Carlino G, Carlson B T, Carlson E M, Carminati L, Carnesale M, Caron S, Carquin E, Carrá S, Carratta G, Carter J W S, Carter T M, Casadei D, Casado M P, Casha A F, Castiglia E G, Castillo F L, Castillo Garcia L, Castillo Gimenez V, Castro N F, Catinaccio A, Catmore J R, Cavaliere V, Cavalli N, Cavasinni V, Celebi E, Celli F, Centonze M S, Cerny K, Cerqueira A S, Cerri A, Cerrito L, Cerutti F, Cervelli A, Cetin S A, Chadi Z, Chakraborty D, Chala M, Chan J, Chan W S, Chan W Y, Chapman J D, Chargeishvili B, Charlton D G, Charman T P, Chatterjee M, Chekanov S, Chekulaev S V, Chelkov G A, Chen A, Chen B, Chen B, Chen C, Chen H, Chen H, Chen J, Chen J, Chen S, Chen S J, Chen X, Chen X, Chen Y, Cheng C L, Cheng H C, Cheplakov A, Cheremushkina E, Cherepanova E, Cherkaoui El Moursli R, Cheu E, Cheung K, Chevalier L, Chiarella V, Chiarelli G, Chiodini G, Chisholm A S, Chitan A, Chiu Y H, Chizhov M V, Choi K, Chomont A R, Chou Y, Chow E Y S, Chowdhury T, Christopher L D, Chu M C, Chu X, Chudoba J, Chwastowski J J, Cieri D, Ciesla K M, Cindro V, Ciocio A, Cirotto F, Citron Z H, Citterio M, Ciubotaru D A, Ciungu B M, Clark A, Clark P J, Clavijo Columbie J M, Clawson S E, Clement C, Clissa L, Coadou Y, Cobal M, Coccaro A, Barrue R F Coelho, Coelho Lopes De Sa R, Coelli S, Cohen H, Coimbra A E C, Cole B, Collot J, Conde Muiño P, Connell S H, Connelly I A, Conroy E I, Conventi F, Cooke H G, Cooper-Sarkar A M, Cormier F, Corpe L D, Corradi M, Corrigan E E, Corriveau F, Costa M J, Costanza F, Costanzo D, Cote B M, Cowan G, Cowley J W, Cranmer K, Crépé-Renaudin S, Crescioli F, Cristinziani M, Cristoforetti M, Croft V, Crosetti G, Cueto A, Cuhadar Donszelmann T, Cui H, Cui Z, Cukierman A R, Cunningham W R, Curcio F, Czodrowski P, Czurylo M M, De Sousa M J Da Cunha Sargedas, Da Fonseca Pinto J V, Da Via C, Dabrowski W, Dado T, Dahbi S, Dai T, Dallapiccola C, Dam M, D'amen G, D'Amico V, Damp J, Dandoy J R, Daneri M F, Danninger M, Dao V, Darbo G, Darmora S, Dattagupta A, D'Auria S, David C, Davidek T, Davis D R, Davis-Purcell B, Dawson I, De K, De Asmundis R, De Beurs M, De Castro S, De Groot N, de Jong P, De la Torre H, De Maria A, De Salvo A, De Sanctis U, De Santis M, De Santo A, De Vivie De Regie J B, Dedovich D V, Degens J, Deiana A M, Del Peso J, Del Rio F, Deliot F, Delitzsch C M, Della Pietra M, Della Volpe D, Dell'Acqua A, Dell'Asta L, Delmastro M, Delsart P A, Demers S, Demichev M, Denisov S P, D'Eramo L, Derendarz D, Derue F, Dervan P, Desch K, Dette K, Deutsch C, Deviveiros P O, Di Bello F A, Di Ciaccio A, Di Ciaccio L, Di Domenico A, Di Donato C, Di Girolamo A, Di Gregorio G, Di Luca A, Di Micco B, Di Nardo R, Diaconu C, Dias F A, Vale T Dias Do, Diaz M A, Diaz Capriles F G, Didenko M, Diehl E B, Díez Cornell S, Diez Pardos C, Dimitriadi C, Dimitrievska A, Ding W, Dingfelder J, Dinu I-M, Dittmeier S J, Dittus F, Djama F, Djobava T, Djuvsland J I, Dodsworth D, Doglioni C, Dolejsi J, Dolezal Z, Donadelli M, Dong B, Donini J, D'Onofrio A, D'Onofrio M, Dopke J, Doria A, Dova M T, Doyle A T, Drechsler E, Dreyer E, Drobac A S, Du D, du Pree T A, Dubinin F, Dubovsky M, Duchovni E, Duckeck G, Ducu O A, Duda D, Dudarev A, D'uffizi M, Duflot L, Dührssen M, Dülsen C, Dumitriu A E, Dunford M, Dungs S, Dunne K, Duperrin A, Yildiz H Duran, Düren M, Durglishvili A, Dutta B, Dwyer B L, Dyckes G I, Dyndal M, Dysch S, Dziedzic B S, Eckerova B, Eggleston M G, Purcino De Souza E Egidio, Ehrke L F, Eigen G, Einsweiler K, Ekelof T, El Ghazali Y, El Jarrari H, El Moussaouy A, Ellajosyula V, Ellert M, Ellinghaus F, Elliot A A, Ellis N, Elmsheuser J, Elsing M, Emeliyanov D, Emerman A, Enari Y, Ene I, Erdmann J, Ereditato A, Erland P A, Errenst M, Escalier M, Escobar C, Etzion E, Evans G, Evans H, Evans M O, Ezhilov A, Ezzarqtouni S, Fabbri F, Fabbri L, Facini G, Fadeyev V, Fakhrutdinov R M, Falciano S, Falke P J, Falke S, Faltova J, Fan Y, Fang Y, Fanourakis G, Fanti M, Faraj M, Farbin A, Farilla A, Farooque T, Farrington S M, Fassi F, Fassouliotis D, Faucci Giannelli M, Fawcett W J, Fayard L, Fedin O L, Fedotov G, Feickert M, Feligioni L, Fell A, Fellers D E, Feng C, Feng M, Fenton M J, Fenyuk A B, Ferguson S W, Pretel J, Ferrando J, Ferrari A, Ferrari P, Ferrari R, Ferrere D, Ferretti C, Fiedler F, Filipčič A, Filmer E K, Filthaut F, Fiolhais M C N, Fiorini L, Fischer F, Fisher W C, Fitschen T, Fleck I, Fleischmann P, Flick T, Flores L, Flores M, Flores Castillo L R, Follega F M, Fomin N, Foo J H, Forland B C, Formica A, Forti A C, Fortin E, Fortman A W, Foti M G, Fountas L, Fournier D, Fox H, Francavilla P, Francescato S, Franchini M, Franchino S, Francis D, Franco L, Franconi L, Franklin M, Frattari G, Freegard A C, Freeman P M, Freund W S, Freundlich E M, Froidevaux D, Frost J A, Fu Y, Fujimoto M, Fullana Torregrosa E, Fuster J, Gabrielli A, Gabrielli A, Gadow P, Gagliardi G, Gagnon L G, Galantzan S, Gallardo G E, Gallas E J, Gallop B J, Gamboa Goni R, Gan K K, Ganguly S, Gao J, Gao Y, Garay Walls F M, Garcia B, García C, García Navarro J E, García Pascual J A, Garcia-Sciveres M, Gardner R W, Garg D, Garg R B, Gargiulo S, Garner C A, Garonne V, Gasiorowski S J, Gaspar P, Gaudio G, Gauzzi P, Gavrilenko I L, Gavrilyuk A, Gay C, Gaycken G, Gazis E N, Geanta A A, Gee C M, Geisen J, Geisen M, Gemme C, Genest M H, Gentile S, George S, George W F, Geralis T, Gerlach L O, Gessinger-Befurt P, Ghasemi Bostanabad M, Ghneimat M, Ghosal A, Ghosh A, Ghosh A, Giacobbe B, Giagu S, Giangiacomi N, Giannetti P, Giannini A, Gibson S M, Gignac M, Gil D T, Gilbert B J, Gillberg D, Gilles G, Gillwald N E K, Ginabat L, Gingrich D M, Giordani M P, Giraud P F, Giugliarelli G, Giugni D, Giuli F, Gkialas I, Gkountoumis P, Gladilin L K, Glasman C, Gledhill G R, Glisic M, Gnesi I, Go Y, Goblirsch-Kolb M, Godin D, Goldfarb S, Golling T, Gololo M G D, Golubkov D, Gombas J P, Gomes A, Gomez Delegido A J, Goncalves Gama R, Gonçalo R, Gonella G, Gonella L, Gongadze A, Gonnella F, Gonski J L, González de la Hoz S, Gonzalez Fernandez S, Gonzalez Lopez R, Gonzalez Renteria C, Gonzalez Suarez R, Gonzalez-Sevilla S, Gonzalvo Rodriguez G R, González Andana R Y, Goossens L, Gorasia N A, Gorbounov P A, Gorini B, Gorini E, Gorišek A, Goshaw A T, Gostkin M I, Gottardo C A, Gouighri M, Goumarre V, Goussiou A G, Govender N, Goy C, Grabowska-Bold I, Graham K, Gramstad E, Grancagnolo S, Grandi M, Gratchev V, Gravila P M, Gravili F G, Gray H M, Grefe C, Gregor I M, Grenier P, Grevtsov K, Grieco C, Grillo A A, Grimm K, Grinstein S, Grivaz J-F, Groh S, Gross E, Grosse-Knetter J, Grud C, Grummer A, Grundy J C, Guan L, Guan W, Gubbels C, Guerrero Rojas J G R, Guescini F, Gugel R, Guida A, Guillemin T, Guindon S, Guo F, Guo J, Guo L, Guo Y, Gupta R, Gurbuz S, Gustavino G, Guth M, Gutierrez P, Gutierrez Zagazeta L F, Gutschow C, Guyot C, Gwenlan C, Gwilliam C B, Haaland E S, Haas A, Habedank M, Haber C, Hadavand H K, Hadef A, Hadzic S, Haleem M, Haley J, Hall J J, Hallewell G D, Halser L, Hamano K, Hamdaoui H, Hamer M, Hamity G N, Han J, Han K, Han L, Han L, Han S, Han Y F, Hanagaki K, Hance M, Hangal D A, Hank M D, Hankache R, Hansen E, Hansen J B, Hansen J D, Hansen P H, Hara K, Harada D, Harenberg T, Harkusha S, Harris Y T, Harrison P F, Hartman N M, Hartmann N M, Hasegawa Y, Hasib A, Haug S, Hauser R, Havranek M, Hawkes C M, Hawkings R J, Hayashida S, Hayden D, Hayes C, Hayes R L, Hays C P, Hays J M, Hayward H S, He F, He Y, He Y, Heath M P, Hedberg V, Heggelund A L, Hehir N D, Heidegger C, Heidegger K K, Heidorn W D, Heilman J, Heim S, Heim T, Heinemann B, Heinlein J G, Heinrich J J, Heinrich L, Hejbal J, Helary L, Held A, Hellesund S, Helling C M, Hellman S, Helsens C, Henderson R C W, Henkelmann L, Henriques Correia A M, Herde H, Hernández Jiménez Y, Herr H, Herrmann M G, Herrmann T, Herten G, Hertenberger R, Hervas L, Hessey N P, Hibi H, Higón-Rodriguez E, Hillier S J, Hinchliffe I, Hinterkeuser F, Hirose M, Hirose S, Hirschbuehl D, Hiti B, Hladik O, Hobbs J, Hobincu R, Hod N, Hodgkinson M C, Hodkinson B H, Hoecker A, Hofer J, Hohn D, Holm T, Holzbock M, Hommels L B A H, Honan B P, Hong J, Hong T M, Hong Y, Honig J C, Hönle A, Hooberman B H, Hopkins W H, Horii Y, Horyn L A, Hou S, Howarth J, Hoya J, Hrabovsky M, Hrynevich A, Hryn'ova T, Hsu P J, Hsu S-C, Hu Q, Hu S, Hu Y F, Huang D P, Huang X, Huang Y, Huang Y, Hubacek Z, Huebner M, Huegging F, Huffman T B, Huhtinen M, Huiberts S K, Hulsken R, Huseynov N, Huston J, Huth J, Hyneman R, Hyrych S, Iacobucci G, Iakovidis G, Ibragimov I, Iconomidou-Fayard L, Iengo P, Iguchi R, Iizawa T, Ikegami Y, Ilg A, Ilic N, Imam H, Ingebretsen Carlson T, Introzzi G, Iodice M, Ippolito V, Ishino M, Islam W, Issever C, Istin S, Ito H, Iturbe Ponce J M, Iuppa R, Ivina A, Izen J M, Izzo V, Jacka P, Jackson P, Jacobs R M, Jaeger B P, Jagfeld C S, Jäkel G, Jakobs K, Jakoubek T, Jamieson J, Janas K W, Jarlskog G, Jaspan A E, Javůrek T, Javurkova M, Jeanneau F, Jeanty L, Jejelava J, Jenni P, Jézéquel S, Jia J, Jia X, Jia Z, Jiang Y, Jiggins S, Jimenez Pena J, Jin S, Jinaru A, Jinnouchi O, Jivan H, Johansson P, Johns K A, Johnson C A, Jones D M, Jones E, Jones R W L, Jones T J, Jovicevic J, Ju X, Junggeburth J J, Juste Rozas A, Kabana S, Kaczmarska A, Kado M, Kagan H, Kagan M, Kahn A, Kahn A, Kahra C, Kaji T, Kajomovitz E, Kakati N, Kalderon C W, Kamenshchikov A, Kang N J, Kano Y, Kar D, Karava K, Kareem M J, Karentzos E, Karkanias I, Karpov S N, Karpova Z M, Kartvelishvili V, Karyukhin A N, Kasimi E, Kato C, Katzy J, Kaur S, Kawade K, Kawagoe K, Kawaguchi T, Kawamoto T, Kawamura G, Kay E F, Kaya F I, Kazakos S, Kazanin V F, Ke Y, Keaveney J M, Keeler R, Kehris G V, Keller J S, Kelly A S, Kelsey D, Kempster J J, Kendrick J, Kennedy K E, Kepka O, Kersten S, Kerševan B P, Ketabchi Haghighat S, Khandoga M, Khanov A, Kharlamov A G, Kharlamova T, Khoda E E, Khoo T J, Khoriauli G, Khubua J, Kiehn M, Kilgallon A, Kim E, Kim Y K, Kimura N, Kirchhoff A, Kirchmeier D, Kirfel C, Kirk J, Kiryunin A E, Kishimoto T, Kisliuk D P, Kitsaki C, Kivernyk O, Klassen M, Klein C, Klein L, Klein M H, Klein M, Klein U, Klimek P, Klimentov A, Klimpel F, Klingl T, Klioutchnikova T, Klitzner F F, Kluit P, Kluth S, Kneringer E, Knight T M, Knue A, Kobayashi D, Kobayashi R, Kocian M, Kodama T, Kodyš P, Koeck D M, Koenig P T, Koffas T, Köhler N M, Kolb M, Koletsou I, Komarek T, Köneke K, Kong A X Y, Kono T, Konstantinidis N, Konya B, Kopeliansky R, Koperny S, Korcyl K, Kordas K, Koren G, Korn A, Korn S, Korolkov I, Korotkova N, Kortman B, Kortner O, Kortner S, Kostecka W H, Kostyukhin V V, Kotsokechagia A, Kotwal A, Koulouris A, Kourkoumeli-Charalampidi A, Kourkoumelis C, Kourlitis E, Kovanda O, Kowalewski R, Kozanecki W, Kozhin A S, Kramarenko V A, Kramberger G, Kramer P, Krasny M W, Krasznahorkay A, Kremer J A, Kretzschmar J, Kreul K, Krieger P, Krieter F, Krishnamurthy S, Krishnan A, Krivos M, Krizka K, Kroeninger K, Kroha H, Kroll J, Kroll J, Krowpman K S, Kruchonak U, Krüger H, Krumnack N, Kruse M C, Krzysiak J A, Kubota A, Kuchinskaia O, Kuday S, Kuechler D, Kuechler J T, Kuehn S, Kuhl T, Kukhtin V, Kulchitsky Y, Kuleshov S, Kumar M, Kumari N, Kuna M, Kupco A, Kupfer T, Kuprash O, Kurashige H, Kurchaninov L L, Kurochkin Y A, Kurova A, Kuwertz E S, Kuze M, Kvam A K, Kvita J, Kwan T, Kwok K W, Lacasta C, Lacava F, Lacker H, Lacour D, Lad N N, Ladygin E, Laforge B, Lagouri T, Lai S, Lakomiec I K, Lalloue N, Lambert J E, Lammers S, Lampl W, Lampoudis C, Lançon E, Landgraf U, Landon M P J, Lang V S, Lange J C, Langenberg R J, Lankford A J, Lanni F, Lantzsch K, Lanza A, Lapertosa A, Laporte J F, Lari T, Lasagni Manghi F, Lassnig M, Latonova V, Lau T S, Laudrain A, Laurier A, Lavorgna M, Lawlor S D, Lawrence Z, Lazzaroni M, Le B, Leban B, Lebedev A, LeBlanc M, LeCompte T, Ledroit-Guillon F, Lee A C A, Lee G R, Lee L, Lee S C, Leeuw L L, Lefebvre B, Lefebvre H P, Lefebvre M, Leggett C, Lehmann K, Lehmann Miotto G, Leight W A, Leisos A, Leite M A L, Leitgeb C E, Leitner R, Leney K J C, Lenz T, Leone S, Leonidopoulos C, Leopold A, Leroy C, Les R, Lester C G, Levchenko M, Levêque J, Levin D, Levinson L J, Lewis D J, Li B, Li B, Li C, Li C-Q, Li H, Li H, Li H, Li J, Li K, Li L, Li M, Li Q Y, Li S, Li T, Li X, Li Z, Li Z, Li Z, Li Z, Liang Z, Liberatore M, Liberti B, Lie K, Lieber Marin J, Lin K, Linck R A, Lindley R E, Lindon J H, Linss A, Lipeles E, Lipniacka A, Liss T M, Lister A, Little J D, Liu B, Liu B X, Liu D, Liu J B, Liu J K K, Liu K, Liu M, Liu M Y, Liu P, Liu Q, Liu X, Liu Y, Liu Y, Liu Y L, Liu Y W, Livan M, Llorente Merino J, Lloyd S L, Lobodzinska E M, Loch P, Loffredo S, Lohse T, Lohwasser K, Lokajicek M, Long J D, Longarini I, Longo L, Longo R, Lopez Paz I, Lopez Solis A, Lorenz J, Lorenzo Martinez N, Lory A M, Lösle A, Lou X, Lou X, Lounis A, Love J, Love P A, Lozano Bahilo J J, Lu G, Lu M, Lu S, Lu Y J, Lubatti H J, Luci C, Lucio Alves F L, Lucotte A, Luehring F, Luise I, Lundberg O, Lund-Jensen B, Luongo N A, Lutz M S, Lynn D, Lyons H, Lysak R, Lytken E, Lyu F, Lyubushkin V, Lyubushkina T, Ma H, Ma L L, Ma Y, Mac Donell D M, Maccarrone G, MacDonald J C, Madar R, Mader W F, Maeda J, Maeno T, Maerker M, Magerl V, Magro J, Mahon D J, Maidantchik C, Maio A, Maj K, Majersky O, Majewski S, Makovec N, Maksimovic V, Malaescu B, Malecki Pa, Maleev V P, Malek F, Malito D, Mallik U, Malone C, Maltezos S, Malyukov S, Mamuzic J, Mancini G, Mandalia J P, Mandić I, Manhaes de Andrade Filho L, Maniatis I M, Manisha M, Manjarres Ramos J, Mankad D C, Mankinen K H, Mann A, Manousos A, Mansoulie B, Manzoni S, Marantis A, Marchiori G, Marcisovsky M, Marcoccia L, Marcon C, Marinescu M, Marjanovic M, Marshall Z, Marti-Garcia S, Martin T A, Martin V J, Martin Dit Latour B, Martinelli L, Martinez M, Martinez Agullo P, Martinez Outschoorn V I, Martinez Suarez P, Martin-Haugh S, Martoiu V S, Martyniuk A C, Marzin A, Maschek S R, Masetti L, Mashimo T, Masik J, Maslennikov A L, Massa L, Massarotti P, Mastrandrea P, Mastroberardino A, Masubuchi T, Mathisen T, Matic A, Matsuzawa N, Maurer J, Maček B, Maximov D A, Mazini R, Maznas I, Mazza M, Mazza S M, Mc Ginn C, Mc Gowan J P, Mc Kee S P, McCarthy T G, McCormack W P, McDonald E F, McDougall A E, Mcfayden J A, Mchedlidze G, McKay M A, Mckenzie R P, Mclaughlin D J, McLean K D, McMahon S J, McNamara P C, McPherson R A, Mdhluli J E, Meehan S, Megy T, Mehlhase S, Mehta A, Meirose B, Melini D, Mellado Garcia B R, Melo A H, Meloni F, Melzer A, Gouveia E D Mendes, Mendes Jacques Da Costa A M, Meng H Y, Meng L, Menke S, Mentink M, Meoni E, Merlassino C, Merola L, Meroni C, Merz G, Meshkov O, Meshreki J K R, Metcalfe J, Mete A S, Meyer C, Meyer J-P, Michetti M, Middleton R P, Mijović L, Mikenberg G, Mikestikova M, Mikuž M, Mildner H, Milic A, Milke C D, Miller D W, Miller L S, Milov A, Milstead D A, Min T, Minaenko A A, Minashvili I A, Mince L, Mincer A I, Mindur B, Mineev M, Minegishi Y, Mino Y, Mir L M, Miralles Lopez M, Mironova M, Mitani T, Mitra A, Mitsou V A, Miu O, Miyagawa P S, Miyazaki Y, Mizukami A, Mjörnmark J U, Mkrtchyan T, Mlynarikova M, Moa T, Mobius S, Mochizuki K, Moder P, Mogg P, Mohammed A F, Mohapatra S, Mokgatitswane G, Mondal B, Mondal S, Mönig K, Monnier E, Monsonis Romero L, Montejo Berlingen J, Montella M, Monticelli F, Morange N, De Carvalho A L Moreira, Moreno Llácer M, Moreno Martinez C, Morettini P, Morgenstern S, Mori D, Morii M, Morinaga M, Morisbak V, Morley A K, Morvaj L, Moschovakos P, Moser B, Mosidze M, Moskalets T, Moskvitina P, Moss J, Moyse E J W, Muanza S, Mueller J, Muenstermann D, Müller R, Mullier G A, Mullin J J, Mungo D P, Munoz Martinez J L, Munoz Sanchez F J, Murin M, Murray W J, Murrone A, Muse J M, Muškinja M, Mwewa C, Myagkov A G, Myers A J, Myers A A, Myers G, Myska M, Nachman B P, Nackenhorst O, Nag A, Nagai K, Nagano K, Nagle J L, Nagy E, Nairz A M, Nakahama Y, Nakamura K, Nanjo H, Narayan R, Narayanan E A, Naryshkin I, Naseri M, Nass C, Navarro G, Navarro-Gonzalez J, Nayak R, Nechaeva P Y, Nechansky F, Neep T J, Negri A, Negrini M, Nellist C, Nelson C, Nelson K, Nemecek S, Nessi M, Neubauer M S, Neuhaus F, Neundorf J, Newhouse R, Newman P R, Ng C W, Ng Y S, Ng Y W Y, Ngair B, Nguyen H D N, Nickerson R B, Nicolaidou R, Nielsen D S, Nielsen J, Niemeyer M, Nikiforou N, Nikolaenko V, Nikolic-Audit I, Nikolopoulos K, Nilsson P, Nindhito H R, Nisati A, Nishu N, Nisius R, Noacco Rosende S J, Nobe T, Noel D L, Noguchi Y, Nomidis I, Nomura M A, Norfolk M B, Norisam R R B, Novak J, Novak T, Novgorodova O, Novotny L, Novotny R, Nozka L, Ntekas K, Nurse E, Oakham F G, Ocariz J, Ochi A, Ochoa I, Ochoa-Ricoux J P, Oda S, Oerdek S, Ogrodnik A, Oh A, Ohm C C, Oide H, Oishi R, Ojeda M L, Okazaki Y, O'Keefe M W, Okumura Y, Olariu A, Seabra L F Oleiro, Olivares Pino S A, Oliveira Damazio D, Oliveira Goncalves D, Oliver J L, Olsson M J R, Olszewski A, Olszowska J, Öncel Ö O, O'Neil D C, O'Neill A P, Onofre A, Onyisi P U E, Oreamuno Madriz R G, Oreglia M J, Orellana G E, Orestano D, Orlando N, Orr R S, O'Shea V, Ospanov R, Otero Y Garzon G, Otono H, Ott P S, Ottino G J, Ouchrif M, Ouellette J, Ould-Saada F, Owen M, Owen R E, Oyulmaz K Y, Ozcan V E, Ozturk N, Ozturk S, Pacalt J, Pacey H A, Pachal K, Pacheco Pages A, Padilla Aranda C, Pagan Griso S, Palacino G, Palazzo S, Palestini S, Palka M, Pan J, Panchal D K, Pandini C E, Panduro Vazquez J G, Pani P, Panizzo G, Paolozzi L, Papadatos C, Parajuli S, Paramonov A, Paraskevopoulos C, Paredes Hernandez D, Parida B, Park T H, Parker A J, Parker M A, Parodi F, Parrish E W, Parrish V A, Parsons J A, Parzefall U, Pascual Dias B, Pascual Dominguez L, Pascuzzi V R, Pasquali F, Pasqualucci E, Passaggio S, Pastore F, Pasuwan P, Pater J R, Pathak A, Patton J, Pauly T, Pearkes J, Pedersen M, Pedro R, Peleganchuk S V, Penc O, Peng C, Peng H, Penzin M, Peralva B S, Peixoto A P Pereira, Pereira Sanchez L, Perepelitsa D V, Perez Codina E, Perganti M, Perini L, Pernegger H, Perrella S, Perrevoort A, Perrin O, Peters K, Peters R F Y, Petersen B A, Petersen T C, Petit E, Petousis V, Petridou C, Petrukhin A, Pettee M, Pettersson N E, Petukhova K, Peyaud A, Pezoa R, Pezzotti L, Pezzullo G, Pham T, Phillips P W, Phipps M W, Piacquadio G, Pianori E, Piazza F, Piegaia R, Pietreanu D, Pilkington A D, Pinamonti M, Pinfold J L, Pitman Donaldson C, Pizzi D A, Pizzimento L, Pizzini A, Pleier M-A, Plesanovs V, Pleskot V, Plotnikova E, Poddar G, Poettgen R, Poggi R, Poggioli L, Pogrebnyak I, Pohl D, Pokharel I, Polacek S, Polesello G, Poley A, Polifka R, Polini A, Pollard C S, Pollock Z B, Polychronakos V, Ponomarenko D, Pontecorvo L, Popa S, Popeneciu G A, Portillo Quintero D M, Pospisil S, Postolache P, Potamianos K, Potrap I N, Potter C J, Potti H, Poulsen T, Poveda J, Pownall G, Pozo Astigarraga M E, Prades Ibanez A, Pralavorio P, Prapa M M, Price D, Primavera M, Principe Martin M A, Proffitt M L, Proklova N, Prokofiev K, Proto G, Protopopescu S, Proudfoot J, Przybycien M, Pudzha D, Puzo P, Pyatiizbyantseva D, Qian J, Qin Y, Qiu T, Quadt A, Queitsch-Maitland M, Rabanal Bolanos G, Rafanoharana D, Ragusa F, Raine J A, Rajagopalan S, Ran K, Raskina V, Rassloff D F, Rave S, Ravina B, Ravinovich I, Raymond M, Read A L, Readioff N P, Rebuzzi D M, Redlinger G, Reeves K, Reikher D, Reiss A, Rej A, Rembser C, Renardi A, Renda M, Rendel M B, Rennie A G, Resconi S, Ressegotti M, Resseguie E D, Rettie S, Reynolds B, Reynolds E, Rezaei Estabragh M, Rezanova O L, Reznicek P, Ricci E, Richter R, Richter S, Richter-Was E, Ridel M, Rieck P, Riedler P, Rijssenbeek M, Rimoldi A, Rimoldi M, Rinaldi L, Rinn T T, Rinnagel M P, Ripellino G, Riu I, Rivadeneira P, Rivera Vergara J C, Rizatdinova F, Rizvi E, Rizzi C, Roberts B A, Roberts B R, Robertson S H, Robin M, Robinson D, Robles Gajardo C M, Robles Manzano M, Robson A, Rocchi A, Roda C, Rodriguez Bosca S, Rodriguez Garcia Y, Rodriguez Rodriguez A, Rodríguez Vera A M, Roe S, Roemer J T, Roepe-Gier A R, Roggel J, Røhne O, Rojas R A, Roland B, Roland C P A, Roloff J, Romaniouk A, Romano M, Romero Hernandez A C, Rompotis N, Ronzani M, Roos L, Rosati S, Rosser B J, Rossi E, Rossi E, Rossi L P, Rossini L, Rosten R, Rotaru M, Rottler B, Rousseau D, Rousso D, Rovelli G, Roy A, Rozanov A, Rozen Y, Ruan X, Ruby A J, Ruchayskiy O, Ruggeri T A, Rühr F, Ruiz-Martinez A, Rummler A, Rurikova Z, Rusakovich N A, Russell H L, Rustige L, Rutherfoord J P, Rüttinger E M, Rybacki K, Rybar M, Rye E B, Ryzhov A, Sabater Iglesias J A, Sabatini P, Sabetta L, Sadrozinski H F-W, Safai Tehrani F, Safarzadeh Samani B, Safdari M, Saha S, Sahinsoy M, Sahu A, Saimpert M, Saito M, Saito T, Salamani D, Salamanna G, Salnikov A, Salt J, Salvador Salas A, Salvatore D, Salvatore F, Salzburger A, Sammel D, Sampsonidis D, Sampsonidou D, Sánchez J, Sanchez Pineda A, Sanchez Sebastian V, Sandaker H, Sander C O, Sanderswood I G, Sandesara J A, Sandhoff M, Sandoval C, Sankey D P C, Sansoni A, Santoni C, Santos H, Santpur S N, Santra A, Saoucha K A, Saraiva J G, Sardain J, Sasaki O, Sato K, Sauer C, Sauerburger F, Sauvan E, Savard P, Sawada R, Sawyer C, Sawyer L, Sayago Galvan I, Sbarra C, Sbrizzi A, Scanlon T, Schaarschmidt J, Schacht P, Schaefer D, Schäfer U, Schaffer A C, Schaile D, Schamberger R D, Schanet E, Scharf C, Scharmberg N, Schegelsky V A, Scheirich D, Schenck F, Schernau M, Scheulen C, Schiavi C, Schillaci Z M, Schioppa E J, Schioppa M, Schlag B, Schleicher K E, Schlenker S, Schmieden K, Schmitt C, Schmitt S, Schoeffel L, Schoening A, Scholer P G, Schopf E, Schott M, Schovancova J, Schramm S, Schroeder F, Schultz-Coulon H-C, Schumacher M, Schumm B A, Schune Ph, Schwartzman A, Schwarz T A, Schwemling Ph, Schwienhorst R, Sciandra A, Sciolla G, Scuri F, Scutti F, Sebastiani C D, Sedlaczek K, Seema P, Seidel S C, Seiden A, Seidlitz B D, Seiss T, Seitz C, Seixas J M, Sekhniaidze G, Sekula S J, Selem L, Semprini-Cesari N, Sen S, Senthilkumar V, Serin L, Serkin L, Sessa M, Severini H, Sevova S, Sforza F, Sfyrla A, Shabalina E, Shaheen R, Shahinian J D, Shaikh N W, Shaked Renous D, Shan L Y, Shapiro M, Sharma A, Sharma A S, Sharma S, Shatalov P B, Shaw K, Shaw S M, Sherwood P, Shi L, Shimmin C O, Shimogama Y, Shinner J D, Shipsey I P J, Shirabe S, Shiyakova M, Shlomi J, Shochet M J, Shojaii J, Shope D R, Shrestha S, Shrif E M, Shroff M J, Sicho P, Sickles A M, Sideras Haddad E, Sidiropoulou O, Sidoti A, Siegert F, Sijacki Dj, Sili F, Silva J M, Silva Oliveira M V, Silverstein S B, Simion S, Simoniello R, Simpson N D, Simsek S, Sindhu S, Sinervo P, Sinetckii V, Singh S, Singh S, Sinha S, Sinha S, Sioli M, Siral I, Sivoklokov S Yu, Sjölin J, Skaf A, Skorda E, Skubic P, Slawinska M, Smakhtin V, Smart B H, Smiesko J, Smirnov S Yu, Smirnov Y, Smirnova L N, Smirnova O, Smith E A, Smith H A, Smith R, Smizanska M, Smolek K, Smykiewicz A, Snesarev A A, Snoek H L, Snyder S, Sobie R, Soffer A, Solans Sanchez C A, Soldatov E Yu, Soldevila U, Solodkov A A, Solomon S, Soloshenko A, Solovieva K, Solovyanov O V, Solovyev V, Sommer P, Son H, Sonay A, Song W Y, Sopczak A, Sopio A L, Sopkova F, Sothilingam V, Sottocornola S, Soualah R, Soumaimi Z, South D, Spagnolo S, Spalla M, Spangenberg M, Spanò F, Sperlich D, Spigo G, Spina M, Spinali S, Spiteri D P, Spousta M, Staats E J, Stabile A, Stamen R, Stamenkovic M, Stampekis A, Standke M, Stanecka E, Stanislaus B, Stanitzki M M, Stankaityte M, Stapf B, Starchenko E A, Stark G H, Stark J, Starko D M, Staroba P, Starovoitov P, Stärz S, Staszewski R, Stavropoulos G, Steentoft J, Steinberg P, Steinhebel A L, Stelzer B, Stelzer H J, Stelzer-Chilton O, Stenzel H, Stevenson T J, Stewart G A, Stockton M C, Stoicea G, Stolarski M, Stonjek S, Straessner A, Strandberg J, Strandberg S, Strauss M, Strebler T, Strizenec P, Ströhmer R, Strom D M, Strom L R, Stroynowski R, Strubig A, Stucci S A, Stugu B, Stupak J, Styles N A, Su D, Su S, Su W, Su X, Sugizaki K, Sulin V V, Sullivan M J, Sultan D M S, Sultanaliyeva L, Sultansoy S, Sumida T, Sun S, Sun S, Gudnadottir O Sunneborn, Sutton M R, Svatos M, Swiatlowski M, Swirski T, Sykora I, Sykora M, Sykora T, Ta D, Tackmann K, Taffard A, Tafirout R, Taibah R H M, Takashima R, Takeda K, Takeva E P, Takubo Y, Talby M, Talyshev A A, Tam K C, Tamir N M, Tanaka A, Tanaka J, Tanaka R, Tang J, Tao Z, Tapia Araya S, Tapprogge S, Tarek Abouelfadl Mohamed A, Tarem S, Tariq K, Tarna G, Tartarelli G F, Tas P, Tasevsky M, Tassi E, Tastet J-L, Tateno G, Tayalati Y, Taylor G N, Taylor W, Teagle H, Tee A S, Teixeira De Lima R, Teixeira-Dias P, Teoh J J, Terashi K, Terron J, Terzo S, Testa M, Teuscher R J, Themistokleous N, Theveneaux-Pelzer T, Thielmann O, Thomas D W, Thomas J P, Thompson E A, Thompson P D, Thomson E, Thorpe E J, Tian Y, Tikhomirov V, Tikhonov Yu A, Timoshenko S, Ting E X L, Tipton P, Tisserant S, Tlou S H, Tnourji A, Todome K, Todorova-Nova S, Todt S, Togawa M, Tojo J, Tokár S, Tokushuku K, Tombs R, Tomoto M, Tompkins L, Tornambe P, Torrence E, Torres H, Torró Pastor E, Toscani M, Tosciri C, Tovey D R, Traeet A, Trandafir I S, Treado C J, Trefzger T, Tricoli A, Trigger I M, Trincaz-Duvoid S, Trischuk D A, Trocmé B, Trofymov A, Troncon C, Trovato F, Truong L, Trzebinski M, Trzupek A, Tsai F, Tsai M, Tsiamis A, Tsiareshka P V, Tsirigotis A, Tsiskaridze V, Tskhadadze E G, Tsopoulou M, Tsujikawa Y, Tsukerman I I, Tsulaia V, Tsuno S, Tsur O, Tsybychev D, Tu Y, Tudorache A, Tudorache V, Tuna A N, Turchikhin S, Turk Cakir I, Turra R, Tuts P M, Tzamarias S, Tzanis P, Tzovara E, Uchida K, Ukegawa F, Ulloa Poblete P A, Unal G, Unal M, Undrus A, Unel G, Uno K, Urban J, Urquijo P, Usai G, Ushioda R, Usman M, Uysal Z, Vacek V, Vachon B, Vadla K O H, Vafeiadis T, Valderanis C, Valdes Santurio E, Valente M, Valentinetti S, Valero A, Vallier A, Valls Ferrer J A, Van Daalen T R, Van Gemmeren P, Van Stroud S, Van Vulpen I, Vanadia M, Vandelli W, Vandenbroucke M, Vandewall E R, Vannicola D, Vannoli L, Vari R, Varnes E W, Varni C, Varol T, Varouchas D, Varvell K E, Vasile M E, Vaslin L, Vasquez G A, Vazeille F, Vazquez Furelos D, Vazquez Schroeder T, Veatch J, Vecchio V, Veen M J, Veliscek I, Veloce L M, Veloso F, Veneziano S, Ventura A, Verbytskyi A, Verducci M, Vergis C, Verissimo De Araujo M, Verkerke W, Vermeulen J C, Vernieri C, Verschuuren P J, Vessella M, Vesterbacka M L, Vetterli M C, Vgenopoulos A, Viaux Maira N, Vickey T, Vickey Boeriu O E, Viehhauser G H A, Vigani L, Villa M, Villaplana Perez M, Villhauer E M, Vilucchi E, Vincter M G, Virdee G S, Vishwakarma A, Vittori C, Vivarelli I, Vladimirov V, Voevodina E, Vogel M, Vokac P, Von Ahnen J, Von Toerne E, Vormwald B, Vorobel V, Vorobev K, Vos M, Vossebeld J H, Vozak M, Vozdecky L, Vranjes N, Vranjes Milosavljevic M, Vrba V, Vreeswijk M, Vuillermet R, Vujinovic O, Vukotic I, Wada S, Wagner C, Wagner W, Wahdan S, Wahlberg H, Wakasa R, Wakida M, Walbrecht V M, Walder J, Walker R, Walkowiak W, Wang A M, Wang A Z, Wang C, Wang C, Wang H, Wang J, Wang P, Wang R-J, Wang R, Wang R, Wang S M, Wang S, Wang T, Wang W T, Wang W X, Wang X, Wang X, Wang X, Wang Y, Wang Z, Wang Z, Wang Z, Warburton A, Ward R J, Warrack N, Watson A T, Watson M F, Watts G, Waugh B M, Webb A F, Weber C, Weber M S, Weber S A, Weber S M, Wei C, Wei Y, Weidberg A R, Weingarten J, Weirich M, Weiser C, Wenaus T, Wendland B, Wengler T, Wenke N S, Wermes N, Wessels M, Whalen K, Wharton A M, White A S, White A, White M J, Whiteson D, Wickremasinghe L, Wiedenmann W, Wiel C, Wielers M, Wieseotte N, Wiglesworth C, Wiik-Fuchs L A M, Wilbern D J, Wilkens H G, Williams D M, Williams H H, Williams S, Willocq S, Windischhofer P J, Winklmeier F, Winter B T, Wittgen M, Wobisch M, Wolf A, Wölker R, Wollrath J, Wolter M W, Wolters H, Wong V W S, Wongel A F, Worm S D, Wosiek B K, Woźniak K W, Wraight K, Wu J, Wu S L, Wu X, Wu Y, Wu Z, Wuerzinger J, Wyatt T R, Wynne B M, Xella S, Xia L, Xia M, Xiang J, Xiao X, Xie M, Xie X, Xiotidis I, Xu D, Xu H, Xu H, Xu L, Xu R, Xu T, Xu W, Xu Y, Xu Z, Xu Z, Yabsley B, Yacoob S, Yamaguchi N, Yamaguchi Y, Yamauchi H, Yamazaki T, Yamazaki Y, Yan J, Yan S, Yan Z, Yang H J, Yang H T, Yang S, Yang T, Yang X, Yang X, Yang Y, Yang Z, Yao W-M, Yap Y C, Ye H, Ye J, Ye S, Ye X, Yeletskikh I, Yexley M R, Yin P, Yorita K, Young C J S, Young C, Yuan M, Yuan R, Yue X, Zaazoua M, Zabinski B, Zacharis G, Zaid E, Zakareishvili T, Zakharchuk N, Zambito S, Zanzi D, Zaplatilek O, Zeißner S V, Zeitnitz C, Zeng J C, Zenger D T, Zenin O, Ženiš T, Zenz S, Zerradi S, Zerwas D, Zhang B, Zhang D F, Zhang G, Zhang J, Zhang K, Zhang L, Zhang M, Zhang R, Zhang S, Zhang X, Zhang X, Zhang Z, Zhao H, Zhao P, Zhao T, Zhao Y, Zhao Z, Zhemchugov A, Zheng Z, Zhong D, Zhou B, Zhou C, Zhou H, Zhou N, Zhou Y, Zhu C G, Zhu C, Zhu H L, Zhu H, Zhu J, Zhu Y, Zhuang X, Zhukov K, Zhulanov V, Zieminska D, Zimine N I, Zimmermann S, Zinsser J, Ziolkowski M, Živković L, Zoccoli A, Zoch K, Zorbas T G, Zormpa O, Zou W, Zwalinski L

Physical review letters

Show Abstract

A search for a long-lived, heavy neutral lepton (N) in 139&#x2009;&#x2009;fb^{-1} of sqrt[s]=13&#x2009;&#x2009;TeV pp collision data collected by the ATLAS detector at the Large Hadron Collider is reported. The N is produced via W&#x2192;N&#x3bc; or W&#x2192;Ne and decays into two charged leptons and a neutrino, forming a displaced vertex. The N mass is used to discriminate between signal and background. No signal is observed, and limits are set on the squared mixing parameters of the N with the left-handed neutrino states for the N mass range 3&#x2009;&#x2009;GeV<m_{N}<15&#x2009;&#x2009;GeV. For the first time, limits are given for both single-flavor and multiflavor mixing scenarios motivated by neutrino flavor oscillation results for both the normal and inverted neutrino-mass hierarchies.

PubMed 2018 Aug

Probing high-momentum protons and neutrons in neutron-rich nuclei.

Nature

Show Abstract

The atomic nucleus is one of the densest and most complex quantum-mechanical systems in nature. Nuclei account for nearly all the mass of the visible Universe. The properties of individual nucleons (protons and neutrons) in nuclei can be probed by scattering a high-energy particle from the nucleus and detecting this particle after it scatters, often also detecting an additional knocked-out proton. Analysis of electron- and proton-scattering experiments suggests that some nucleons in nuclei form close-proximity neutron-proton pairs1-12 with high nucleon momentum, greater than the nuclear Fermi momentum. However, how excess neutrons in neutron-rich nuclei form such close-proximity pairs remains unclear. Here we measure protons and, for the first time, neutrons knocked out of medium-to-heavy nuclei by high-energy electrons and show that the fraction of high-momentum protons increases markedly with the neutron excess in the nucleus, whereas the fraction of high-momentum neutrons decreases slightly. This effect is surprising because in the classical nuclear shell model, protons and neutrons obey Fermi statistics, have little correlation and mostly fill independent energy shells. These high-momentum nucleons in neutron-rich nuclei are important for understanding nuclear parton distribution functions&#xa0;(the partial momentum distribution of the constituents of the nucleon) and changes in the quark distributions of nucleons bound in nuclei (the EMC effect)1,13,14. They are also relevant for the interpretation of neutrino-oscillation measurements15 and understanding of neutron-rich systems such as neutron stars3,16.

NASA ADS 2016-02-00
559 citations

Supernova neutrinos: production, oscillations and detection

Mirizzi, A., Tamborra, I., Janka, H.-Th., Saviano, N., Scholberg, K., Bollig, R., Hüdepohl, L., Chakraborty, S.

Nuovo Cimento Rivista Serie

Show Abstract

Neutrinos play a crucial role in the collapse and explosion of massive stars, governing the infall dynamics of the stellar core, triggering and fueling the explosion and driving the cooling and deleptonization of the newly formed neutron star. Due to their role neutrinos carry information from the heart of the explosion and, due to their weakly interacting nature, offer the only direct probe of the dynamics and thermodynamics at the center of a supernova. In this paper, we review the present status of modelling the neutrino physics and signal formation in collapsing and exploding stars. We assess the capability of current and planned large underground neutrino detectors to yield faithful information of the time and flavor-dependent neutrino signal from a future Galactic supernova. We show how the observable neutrino burst would provide a benchmark for fundamental supernova physics with unprecedented richness of detail. Exploiting the treasure of the measured neutrino events requires a careful discrimination of source-generated properties from signal features that originate on the way to the detector. As for the latter, we discuss self-induced flavor conversions associated with neutrino-neutrino interactions that occur in the deepest stellar regions; matter effects that modify the pattern of flavor conversions in the dynamical stellar envelope; neutrino-oscillation signatures that result from structural features associated with the shock-wave propagation as well as turbulent mass motions in post-shock layers. Finally, we highlight our current understanding of the formation of the diffuse supernova neutrino background and we analyse the perspectives for a detection of this relic signal that integrates the contributions from all past core-collapse supernovae in the Universe.

NASA ADS 2018-04-00
153 citations

What can be learned from a future supernova neutrino detection?

Horiuchi, Shunsaku, Kneller, James P.

Journal of Physics G Nuclear Physics

Show Abstract

This year marks the 30th anniversary of the only supernova from which we have detected neutrinos—SN 1987A. The 20 or so neutrinos that were detected were mined to great depth in order to determine the events that occurred in the explosion and to place limits upon all manner of neutrino properties. Since 1987 the scale and sensitivity of the detectors capable of identifying neutrinos from a Galactic supernova have grown considerably so that current generation detectors are capable of detecting of order 10 000 neutrinos for a supernova at the Galactic Center. Next generation detectors will increase that yield by another order of magnitude. Simultaneous with the growth of neutrino detection capability, our understanding of how massive stars explode and how the neutrino interacts with hot and dense matter has also increased by a tremendous degree. The neutrino signal will contain much information on all manner of physics of interest to a wide community. In this review we describe the expected features of the neutrino signal, the detectors which will detect it, and the signatures one might try to look for in order to get at this physics.

NASA ADS 1998-02-00
710 citations

Initial results from the CHOOZ long baseline reactor neutrino oscillation experiment

Apollonio, M., Baldini, A., Bemporad, C., Caffau, E., Cei, F., Déclais, Y., de Kerret, H., Dieterle, B., Etenko, A., George, J., Giannini, G., Grassi, M., Kozlov, Y., Kropp, W., Kryn, D., Laiman, M., Lane, C. E., Lefièvre, B., Machulin, I., Martemyanov, A., Martemyanov, V., Mikaelyan, L., Nicolò, D., Obolensky, M., Pazzi, R., Pieri, G., Price, L., Riley, S., Reeder, R., Sabelnikov, A., Santin, G., Skorokhvatov, M., Sobel, H., Steele, J., Steinberg, R., Sukhotin, S., Tomshaw, S., Veron, D., Vyrodov, V.

Physics Letters B

Show Abstract

Initial results are presented from CHOOZ, a long-baseline reactor-neutrino vacuum-oscillation experiment. The data reported here were taken during the period March to October 1997, when the two reactors ran at combined power levels varying from zero to values approaching their full rated power of 8.5 (thermal). Electron antineutrinos from the reactors were detected by a liquid scintillation calorimeter located at a distance of about 1. The detector was constructed in a tunnel protected from cosmic rays by a 300 rock overburden. This massive shielding strongly reduced potentially troublesome backgrounds due to cosmic-ray muons, leading to a background rate of about one event per day, more than an order of magnitude smaller than the observed neutrino signal. From the statistical agreement between detected and expected neutrino event rates, we find (at 90% confidence level) no evidence for neutrino oscillations in the disappearance mode for the parameter region given approximately by for maximum mixing and for large .

NASA ADS 2020-08-00
31 citations

Revisiting the quantum field theory of neutrino oscillations in vacuum

Grimus, W.

Journal of Physics G Nuclear Physics

Show Abstract

We consider neutrino oscillations in vacuum in the framework of quantum field theory in which neutrino production and detection processes are part of a single Feynman diagram and the corresponding cross section is computed in the standard way, i.e. with final states represented by plane waves. We use assumptions which are realized in actual experiments and concentrate on the detection process. Moreover, we also allow for a finite time interval of length τ during which the detector records neutrino events. In this context we are motivated by accelerator-neutrino oscillation experiments where data taking is synchronized in time with the proton spill time of the accelerator. Given the final momenta and the direction of neutrino propagation, we find that in the oscillation amplitude—for all practical purposes—the neutrino energy Q is fixed, apart from an interval of order 2πℏ/τ around a mean energy $\bar{Q};$ this is an expression of energy non-conservation or the time-energy uncertainty relation in the detection process due to $\tau \lt \infty $ . We derive in excellent approximation that in the amplitude the oscillation effect originates from massive neutrinos with the same energy $\bar{Q}$ , i.e. oscillations take place in space without any decoherece effect, while the remaining integration over Q in the interval of order 2πℏ/τ around $\bar{Q}$ results in a time-correlation function expressing the time delay between neutrino production and detection.

arXiv 2002-10-31

Very Long Baseline Neutrino Oscillation Experiment for Precise Determination of Oscillation Parameters and Search for nu_mu -> nu_e Appearance and CP Violation

BNL Neutrino Working Group, M. Diwan

arXiv:hep-ex/0211001v1 [hep-ex]

Show Abstract

The possibility of making a low cost, very intense (1MW) high energy proton source at the Brookhaven Alternating Gradient Synchrotron (BNL-AGS) along with the forthcoming new large underground detectors (approaching 1 MT in mass) at the National Underground Science and Engineering Laboratory (NUSEL) in Homestake, South Dakota or at the Waste Isolation Pilot Plant (WIPP) in Carlsbad, New Mexico, allows us to propose a program of experiments that will address fundamental aspects of neutrino oscillations and CP-invariance violation. This program is unique because of the very long baseline of more than 2500 km from BNL to the underground laboratory in the West. We used the running scenario of a low energy, wide band neutrino beam with 1 MW AGS, 500 kT of fiducial mass water Cherenkov detector, and 5x10^7 seconds of running time. In this report we show that with these conditions we precisely measure dm^2_32 and sin^2(2theta_23) and have excellent sensitivity to sin^2(2theta_13) with a distinctive signal spectrum. If sin^2(2theta_13) > 0.01 the experiment is sensitive to the CP-violating phase in the mixing matrix with only neutrino running. By running in the anti-neutrino mode we distinguish between the cases dm^2_31 > 0 versus dm^2_31 < 0 using distinctive distortions to the electron or positron spectrum. Lastly, the very long baseline allows the measurement of dm^2_21 (in the LMA region) with approximately the same resolution as KAMLAND but in the nu_mu -> nu_e appearance channel.

arXiv 2004-12-06

Report of the Solar and Atmospheric Neutrino Experiments Working Group of the APS Multidivisional Neutrino Study

Solar / Atmospheric Neutrino Experiments Working Group

arXiv:hep-ex/0412016v2 [hep-ex]

Show Abstract

Both the first evidence and the first discoveries of neutrino flavor transformation have come from experiments which use neutrino beams provided by Nature. These discoveries were remarkable not only because they were unexpected--they were discoveries in the purest sense--but that they were made initially by experiments whose primary goals were aimed at other physics. Future solar and atmospheric neutrino experiments will also be sensitive to a broad range of physics and thus to new and unexpected phenomena. We discuss here the physics which can be done by new solar and atmospheric neutrino experiments and what we believe to be the highest priorities for the next generation of detectors.

arXiv 2004-11-12

The Neutrino Factory and Beta Beam Experiments and Development

C. Albright, V. Barger, J. Beacom, S. Brice, J. J. Gomez-Cadenas, M. Goodman, D. Harris, P. Huber, A. Jansson, M. Lindner, O. Mena, P. Rapidis, K. Whisnant, W. Winter, The Neutrino Factory, Muon Collider Collaboration

arXiv:physics/0411123v2 [physics.acc-ph]

Show Abstract

The long-term prospects for fully exploring three-flavor mixing in the neutrino sector depend upon an ongoing and increased investment in the appropriate accelerator R&D. Two new concepts have been proposed that would revolutionize neutrino experiments, namely the Neutrino Factory and the Beta Beam facility. These new facilities would dramatically improve our ability to test the three-flavor mixing framework, measure \textsl{CP} violation in the lepton sector, and perhaps determine the neutrino mass hierarchy, and, if necessary, probe extremely small values of the mixing angle $θ_{13}$. The stunning sensitivity that could be achieved with a Neutrino Factory is described, together with our present understanding of the corresponding sensitivity that might be achieved with a Beta Beam facility. In the Beta Beam case, additional study is required to better understand the optimum Beta Beam energy, and the achievable sensitivity. Neither a Neutrino Factory nor a Beta Beam facility could be built without significant R&D. An impressive Neutrino Factory R&D effort has been ongoing in the U.S. and elsewhere over the last few years and significant progress has been made towards optimizing the design, developing and testing the required accelerator components, and significantly reducing the cost. The recent progress is described here.

arXiv 2009-01-11

UHE neutrino astronomy and neutrino oscillations

V. Berezinsky

Proc. 4th Int. Workshop "Neutrino Oscillations in Venice", ed. Milla Baldo Ceolin, p. 137 - 158, 2008

Show Abstract

UHE neutrinos with $E>10^{17}$ eV can be produced by ultra-high energy cosmic rays (UHECR) interacting with CMB photons (cosmogenic neutrinos) and by top-down sources, such as topological defects (TD), superheavy dark matter (SHDM) and mirror matter. Cosmogenic neutrinos are reliably predicted and their fluxes can be numerically evaluated using the observed flux of UHECR. The lower limit for the flux is obtained for the case of pure proton composition of the observed UHECR. The rigorous upper limit for cosmogenic neutrino flux also exists. The maximum neutrino energy is determined by maximum energy of acceleration, which at least for the shock acceleration is expected not to exceed $10^{21} - 10^{22}$ eV. The top-down sources provide neutrino energies a few orders of magnitude higher, and this can be considered as a signature of these models. Oscillations play important role in UHE neutrino astronomy. At production of cosmogenic neutrinos $τ$-neutrinos are absent and $\barν_e$ neutrinos are suppressed. These species, important for detection, appear in the observed fluxes due to oscillation. Mirror neutrinos cannot be observed directly, but due to oscillations to ordinary neutrinos they can provide the largest neutrino flux at the highest energies.

OpenAlex 2009-08-01
171 citations

Paradoxes of neutrino oscillations

Evgeny Akhmedov, A. Yu. Smirnov

Physics of Atomic Nuclei

Show Abstract

Despite the theory of neutrino oscillations being rather old, some of its basic issues are still being debated in the literature. We discuss a number of such issues, including the relevance of the “same energy” and “same momentum” assumptions, the role of quantum-mechanical uncertainty relations in neutrino oscillations, the dependence of the coherence and localization conditions that ensure the observability of neutrino oscillations on neutrino energy and momentum uncertainties, the question of (in)dependence of the oscillation probabilities on the neutrino production and detection processes, and the applicability limits of the stationary-source approximation. We also develop a novel approach to calculation of the oscillation probability in the wave-packet approach, based on the summation/integration conventions different from the standard one, which allows a new insight into the “same energy” vs. “same momentum” problem. We also discuss a number of apparently paradoxical features of the theory of neutrino oscillations.

OpenAlex 2012-05-21
113 citations

Neutrino energy reconstruction problems and neutrino oscillations

Marco Martini, M. Ericson, Guy Chanfray

Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields

Show Abstract

We discuss the accuracy of the usual procedure for neutrino energy reconstruction which is based on the quasielastic kinematics. Our results are described in terms of a probability distribution for a real neutrino energy value. Several factors are responsible for the deviations from the reconstructed value. The main one is the multinucleon component of the neutrino interaction which in the case of Cherenkov detectors enters as a quasielastic cross section, increasing the mean neutrino energy which can differ appreciably from the reconstructed value. As an application we derive, for excess electron events attributed to the conversion of muon neutrinos, the true neutrino energy distribution based on the experimental one which is given in terms of the reconstructed value. The result is a reshaping effect. For MiniBooNE the low energy peak is suppressed and shifted at higher energies, which may influence the interpretation in terms of oscillation. For T2K at the Super Kamiokande far detector the reshaping translates into a narrowing of the energy distribution.

OpenAlex 2018-03-08
33 citations

Effects of a neutrino-dark energy coupling on oscillations of high-energy neutrinos

Niki Klop, Shin’ichiro Ando

Physical review. D/Physical review. D.

Show Abstract

If dark energy (DE) is a dynamical field rather than a cosmological constant, an interaction between DE and the neutrino sector could exist, modifying the neutrino oscillation phenomenology and causing $CP$ and apparent Lorentz violating effects. The terms in the Hamiltonian for flavor propagation induced by the DE-neutrino coupling do not depend on the neutrino energy, while the ordinary components decrease as $\mathrm{\ensuremath{\Delta}}{m}^{2}/{E}_{\ensuremath{\nu}}$. Therefore, the DE-induced effects are absent at lower neutrino energies, but become significant at higher energies, allowing to be searched for by neutrino observatories. We explore the impact of the DE-neutrino coupling on the oscillation probability and the flavor transition in the three-flavor framework, and investigate the $CP$-violating and apparent Lorentz violating effects. We find that DE-induced effects become observable for ${E}_{\ensuremath{\nu}}{m}_{\mathrm{eff}}\ensuremath{\sim}{10}^{\ensuremath{-}20}\text{ }\text{ }{\mathrm{GeV}}^{2}$, where ${m}_{\mathrm{eff}}$ is the effective mass parameter in the DE-induced oscillation probability, and $CP$ is violated over a wide energy range. We also show that current and future experiments have the sensitivity to detect anomalous effects induced by a DE-neutrino coupling and probe the new mixing parameters. The DE-induced effects on neutrino oscillation can be distinguished from other new physics possibilities with similar effects, through the detection of the directional dependence of the interaction, which is specific to this interaction with DE. However, current experiments will not yet be able to measure the small changes of $\ensuremath{\sim}0.03%$ in the flavor composition due to this directional effect.