Search for Electron Antineutrino Appearance in a Long-Baseline Muon Antineutrino Beam.

Published

Journal Article

Electron antineutrino appearance is measured by the T2K experiment in an accelerator-produced antineutrino beam, using additional neutrino beam operation to constrain parameters of the Pontecorvo-Maki-Nakagawa-Sakata (PMNS) mixing matrix. T2K observes 15 candidate electron antineutrino events with a background expectation of 9.3 events. Including information from the kinematic distribution of observed events, the hypothesis of no electron antineutrino appearance is disfavored with a significance of 2.40σ and no discrepancy between data and PMNS predictions is found. A complementary analysis that introduces an additional free parameter which allows non-PMNS values of electron neutrino and antineutrino appearance also finds no discrepancy between data and PMNS predictions.

Full Text

Duke Authors

Cited Authors

  • Abe, K; Akutsu, R; Ali, A; Alt, C; Andreopoulos, C; Anthony, L; Antonova, M; Aoki, S; Ariga, A; Asada, Y; Ashida, Y; Atkin, ET; Awataguchi, Y; Ban, S; Barbi, M; Barker, GJ; Barr, G; Barrow, D; Barry, C; Batkiewicz-Kwasniak, M; Beloshapkin, A; Bench, F; Berardi, V; Berkman, S; Berns, L; Bhadra, S; Bienstock, S; Blondel, A; Bolognesi, S; Bourguille, B; Boyd, SB; Brailsford, D; Bravar, A; Bravo Berguño, D; Bronner, C; Bubak, A; Buizza Avanzini, M; Calcutt, J; Campbell, T; Cao, S; Cartwright, SL; Catanesi, MG; Cervera, A; Chappell, A; Checchia, C; Cherdack, D; Chikuma, N; Christodoulou, G; Coleman, J; Collazuol, G; Cook, L; Coplowe, D; Cudd, A; Dabrowska, A; De Rosa, G; Dealtry, T; Denner, PF; Dennis, SR; Densham, C; Di Lodovico, F; Dokania, N; Dolan, S; Doyle, TA; Drapier, O; Dumarchez, J; Dunne, P; Eklund, L; Emery-Schrenk, S; Ereditato, A; Fernandez, P; Feusels, T; Finch, AJ; Fiorentini, GA; Fiorillo, G; Francois, C; Friend, M; Fujii, Y; Fujita, R; Fukuda, D; Fukuda, R; Fukuda, Y; Fusshoeller, K; Gameil, K; Giganti, C; Golan, T; Gonin, M; Gorin, A; Guigue, M; Hadley, DR; Haigh, JT; Hamacher-Baumann, P; Hartz, M; Hasegawa, T; Hastings, NC; Hayashino, T; Hayato, Y; Hiramoto, A; Hogan, M; Holeczek, J; Hong Van, NT; Iacob, F; Ichikawa, AK; Ikeda, M; Ishida, T; Ishii, T; Ishitsuka, M; Iwamoto, K; Izmaylov, A; Jakkapu, M; Jamieson, B; Jenkins, SJ; Jesús-Valls, C; Jiang, M; Johnson, S; Jonsson, P; Jung, CK; Kabirnezhad, M; Kaboth, AC; Kajita, T; Kakuno, H; Kameda, J; Karlen, D; Kasetti, SP; Kataoka, Y; Katori, T; Kato, Y; Kearns, E; Khabibullin, M; Khotjantsev, A; Kikawa, T; Kim, H; Kim, J; King, S; Kisiel, J; Knight, A; Knox, A; Kobayashi, T; Koch, L; Koga, T; Konaka, A; Kormos, LL; Koshio, Y; Kostin, A; Kowalik, K; Kubo, H; Kudenko, Y; Kukita, N; Kuribayashi, S; Kurjata, R; Kutter, T; Kuze, M; Labarga, L; Lagoda, J; Lamoureux, M; Laveder, M; Lawe, M; Licciardi, M; Lindner, T; Litchfield, RP; Liu, SL; Li, X; Longhin, A; Ludovici, L; Lu, X; Lux, T; Machado, LN; Magaletti, L; Mahn, K; Malek, M; Manly, S; Maret, L; Marino, AD; Marti-Magro, L; Martin, JF; Maruyama, T; Matsubara, T; Matsushita, K; Matveev, V; Mavrokoridis, K; Mazzucato, E; McCarthy, M; McCauley, N; McFarland, KS; McGrew, C; Mefodiev, A; Metelko, C; Mezzetto, M; Minamino, A; Mineev, O; Mine, S; Miura, M; Molina Bueno, L; Moriyama, S; Morrison, J; Mueller, TA; Munteanu, L; Murphy, S; Nagai, Y; Nakadaira, T; Nakahata, M; Nakajima, Y; Nakamura, A; Nakamura, KG; Nakamura, K; Nakayama, S; Nakaya, T; Nakayoshi, K; Nantais, C; Ngoc, TV; Niewczas, K; Nishikawa, K; Nishimura, Y; Nonnenmacher, TS; Nova, F; Novella, P; Nowak, J; Nugent, JC; O'Keeffe, HM; O'Sullivan, L; Odagawa, T; Okumura, K; Okusawa, T; Oser, SM; Owen, RA; Oyama, Y; Palladino, V; Palomino, JL; Paolone, V; Parker, WC; Pasternak, J; Paudyal, P; Pavin, M; Payne, D; Penn, GC; Pickering, L; Pidcott, C; Pintaudi, G; Pinzon Guerra, ES; Pistillo, C; Popov, B; Porwit, K; Posiadala-Zezula, M; Pritchard, A; Quilain, B; Radermacher, T; Radicioni, E; Radics, B; Ratoff, PN; Reinherz-Aronis, E; Riccio, C; Rondio, E; Roth, S; Rubbia, A; Ruggeri, AC; Ruggles, CA; Rychter, A; Sakashita, K; Sánchez, F; Schloesser, CM; Scholberg, K; Schwehr, J; Scott, M; Seiya, Y; Sekiguchi, T; Sekiya, H; Sgalaberna, D; Shah, R; Shaikhiev, A; Shaker, F; Shaykina, A; Shiozawa, M; Shorrock, W; Shvartsman, A; Smirnov, A; Smy, M; Sobczyk, JT; Sobel, H; Soler, FJP; Sonoda, Y; Steinmann, J; Suvorov, S; Suzuki, A; Suzuki, SY; Suzuki, Y; Sztuc, AA; Tada, M; Tajima, M; Takeda, A; Takeuchi, Y; Tanaka, HK; Tanaka, HA; Tanaka, S; Thompson, LF; Toki, W; Touramanis, C; Towstego, T; Tsui, KM; Tsukamoto, T; Tzanov, M; Uchida, Y; Uno, W; Vagins, M; Valder, S; Vallari, Z; Vargas, D; Vasseur, G; Vilela, C; Vinning, WGS; Vladisavljevic, T; Volkov, VV; Wachala, T; Walker, J; Walsh, JG; Wang, Y; Wark, D; Wascko, MO; Weber, A; Wendell, R; Wilking, MJ; Wilkinson, C; Wilson, JR; Wilson, RJ; Wood, K; Wret, C; Yamada, Y; Yamamoto, K; Yanagisawa, C; Yang, G; Yano, T; Yasutome, K; Yen, S; Yershov, N; Yokoyama, M; Yoshida, T; Yu, M; Zalewska, A; Zalipska, J; Zaremba, K; Zarnecki, G; Ziembicki, M; Zimmerman, ED; Zito, M; Zsoldos, S; Zykova, A; T2K Collaboration,

Published Date

  • April 2020

Published In

Volume / Issue

  • 124 / 16

Start / End Page

  • 161802 -

PubMed ID

  • 32383902

Pubmed Central ID

  • 32383902

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/physrevlett.124.161802

Language

  • eng