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Evidence of electron neutrino appearance in a muon neutrino beam
- Abe, K;
- Abgrall, N;
- Aihara, H;
- Akiri, T;
- Albert, JB;
- Andreopoulos, C;
- Aoki, S;
- Ariga, A;
- Ariga, T;
- Assylbekov, S;
- Autiero, D;
- Barbi, M;
- Barker, GJ;
- Barr, G;
- Bass, M;
- Batkiewicz, M;
- Bay, F;
- Bentham, SW;
- Berardi, V;
- Berger, BE;
- Berkman, S;
- Bertram, I;
- Beznosko, D;
- Bhadra, S;
- Blaszczyk, FDM;
- Blondel, A;
- Bojechko, C;
- Boyd, S;
- Brailsford, D;
- Bravar, A;
- Bronner, C;
- Brook-Roberge, DG;
- Buchanan, N;
- Calland, RG;
- Rodríguez, J Caravaca;
- Cartwright, SL;
- Castillo, R;
- Catanesi, MG;
- Cervera, A;
- Cherdack, D;
- Christodoulou, G;
- Clifton, A;
- Coleman, J;
- Coleman, SJ;
- Collazuol, G;
- Connolly, K;
- Cremonesi, L;
- Curioni, A;
- Dabrowska, A;
- Danko, I;
- Das, R;
- Davis, S;
- Day, M;
- de André, JPAM;
- de Perio, P;
- De Rosa, G;
- Dealtry, T;
- Dennis, S;
- Densham, C;
- Di Lodovico, F;
- Di Luise, S;
- Dobson, J;
- Drapier, O;
- Duboyski, T;
- Dufour, F;
- Dumarchez, J;
- Dytman, S;
- Dziewiecki, M;
- Dziomba, M;
- Emery, S;
- Ereditato, A;
- Escudero, L;
- Finch, AJ;
- Frank, E;
- Friend, M;
- Fujii, Y;
- Fukuda, Y;
- Furmanski, A;
- Galymov, V;
- Gaudin, A;
- Giffin, S;
- Giganti, C;
- Gilje, K;
- Golan, T;
- Gomez-Cadenas, JJ;
- Gonin, M;
- Grant, N;
- Gudin, D;
- Hadley, DR;
- Haesler, A;
- Haigh, MD;
- Hamilton, P;
- Hansen, D;
- Hara, T;
- Hartz, M;
- Hasegawa, T;
- Hastings, NC;
- Hayato, Y;
- Hearty, C;
- Helmer, RL;
- Hierholzer, M;
- Hignight, J;
- Hillairet, A;
- Himmel, A;
- Hiraki, T;
- Hirota, S;
- Holeczek, J;
- Horikawa, S;
- Huang, K;
- Ichikawa, AK;
- Ieki, K;
- Ieva, M;
- Ikeda, M;
- Imber, J;
- Insler, J;
- Irvine, TJ;
- Ishida, T;
- Ishii, T;
- Ives, SJ;
- Iyogi, K;
- Izmaylov, A;
- Jacob, A;
- Jamieson, B;
- Johnson, RA;
- Jo, JH;
- Jonsson, P;
- Joo, KK;
- Jung, CK;
- Kaboth, A;
- Kaji, H;
- Kajita, T;
- Kakuno, H;
- Kameda, J;
- Kanazawa, Y;
- Karlen, D;
- Karpikov, I;
- Kearns, E;
- Khabibullin, M;
- Khanam, F;
- Khotjantsev, A;
- Kielczewska, D;
- Kikawa, T;
- Kilinski, A;
- Kim, JY;
- Kim, J;
- Kim, SB;
- Kirby, B;
- Kisiel, J;
- Kitching, P;
- Kobayashi, T;
- Kogan, G;
- Kolaceke, A;
- Konaka, A;
- Kormos, LL;
- Korzenev, A;
- Koseki, K;
- Koshio, Y;
- Kowalik, K;
- Kreslo, I;
- Kropp, W;
- Kubo, H;
- Kudenko, Y;
- Kumaratunga, S;
- Kurjata, R;
- Kutter, T;
- Lagoda, J;
- Laihem, K;
- Laing, A;
- Laveder, M;
- Lawe, M;
- Lazos, M;
- Lee, KP;
- Licciardi, C;
- Lim, IT;
- Lindner, T;
- Lister, C;
- Litchfield, RP;
- Longhin, A;
- Lopez, GD;
- Ludovici, L;
- Macaire, M;
- Magaletti, L;
- Mahn, K;
- Malek, M;
- Manly, S;
- Marchionni, A;
- Marino, AD;
- Marteau, J;
- Martin, JF;
- Maruyama, T;
- Marzec, J;
- Masliah, P;
- Mathie, EL;
- Matveev, V;
- Mavrokoridis, K;
- Mazzucato, E;
- McCauley, N;
- McFarland, KS;
- McGrew, C;
- McLachlan, T;
- Messina, M;
- Metelko, C;
- Mezzetto, M;
- Mijakowski, P;
- Miller, CA;
- 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;
- Nakajima, K;
- Nakamura, K;
- Nakayama, S;
- Nakaya, T;
- Nakayoshi, K;
- Naples, D;
- Nicholls, TC;
- Nielsen, C;
- Nirkko, M;
- Nishikawa, K;
- Nishimura, Y;
- O’Keeffe, HM;
- Obayashi, Y;
- Ohta, R;
- Okumura, K;
- Okusawa, T;
- Oryszczak, W;
- Oser, SM;
- Otani, M;
- Owen, RA;
- Oyama, Y;
- Pac, MY;
- Palladino, V;
- Paolone, V;
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- Pearce, GF;
- Perevozchikov, O;
- Perkin, JD;
- Petrov, Y;
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- Plonski, P;
- Poplawska, E;
- Popov, B;
- Posiadala, M;
- Poutissou, J-M;
- Poutissou, R;
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- Reeves, M;
- Reinherz-Aronis, E;
- Retiere, F;
- Robert, A;
- Rodrigues, PA;
- Rondio, E;
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- Ruterbories, D;
- Sacco, R;
- Sakashita, K;
- Sánchez, F;
- Scantamburlo, E;
- Scholberg, K;
- Schwehr, J;
- Scott, M;
- Scully, DI;
- Seiya, Y;
- Sekiguchi, T;
- Sekiya, H;
- Sgalaberna, D;
- Shibata, M;
- Shiozawa, M;
- Short, S;
- Shustrov, Y;
- Sinclair, P;
- Smith, B;
- Smith, RJ;
- Smy, M;
- Sobczyk, JT;
- Sobel, H;
- Sorel, M;
- Southwell, L;
- Stamoulis, P;
- Steinmann, J;
- Still, B;
- Suzuki, A;
- Suzuki, K;
- Suzuki, SY;
- Suzuki, Y;
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- Szeptycka, M;
- Tacik, R;
- Tada, M;
- Takahashi, S;
- Takeda, A;
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- Tanaka, HA;
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- Tanaka, M;
- Taylor, IJ;
- Terhorst, D;
- Terri, R;
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- Tomura, T;
- Totsuka, Y;
- Touramanis, C;
- Tsukamoto, T;
- Tzanov, M;
- Uchida, Y;
- Ueno, K;
- Vacheret, A;
- Vagins, M;
- Vasseur, G;
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- Waldron, AV;
- Walter, CW;
- Wark, D;
- Wascko, MO;
- Weber, A;
- Wendell, R;
- Wilkes, RJ;
- Wilking, MJ;
- Wilkinson, C;
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- Wilson, JR;
- Wilson, RJ;
- Wongjirad, T;
- Yamada, Y;
- Yamamoto, K;
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- Yen, S;
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- Yuan, T;
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- Zaremba, K;
- Ziembicki, M;
- Zimmerman, ED;
- Zito, M;
- Żmuda, J
Published Web Location
https://doi.org/10.1103/physrevd.88.032002Abstract
The T2K Collaboration reports evidence for electron neutrino appearance at the atmospheric mass splitting, |Δm322|≈2.4×10-3 eV2. An excess of electron neutrino interactions over background is observed from a muon neutrino beam with a peak energy of 0.6 GeV at the Super-Kamiokande (SK) detector 295 km from the beam's origin. Signal and background predictions are constrained by data from near detectors located 280 m from the neutrino production target. We observe 11 electron neutrino candidate events at the SK detector when a background of 3.3±0.4(syst) events is expected. The background-only hypothesis is rejected with a p value of 0.0009 (3.1σ), and a fit assuming νμ→νe oscillations with sinâ¡22θ23=1, δCP=0 and |Δm322|=2.4×10-3 eV2 yields sinâ¡22θ13=0.088-0.039+0. 049(stat+syst). © 2013 American Physical Society.
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