101. Search for Electron Antineutrino Appearance in a Long-baseline Muon Antineutrino Beam
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E. Rondio, N. McCauley, C. M. Nantais, K. Porwit, J. T. Haigh, M. McCarthy, Vladimir Volkov, Lester D.R. Thompson, M. Mezzetto, W. Toki, L. Molina Bueno, K. Nishikawa, A. A. Sztuc, E. S. Pinzon Guerra, M. Vagins, S. Mine, Xianguo Lu, F. Di Lodovico, M. Barbi, M. Tada, B. Radics, Masashi Yokoyama, C. Alt, K. M. Tsui, M. G. Catanesi, Yu. G. Kudenko, N. C. Hastings, N. T. Hong Van, Y. Takeuchi, K. Kowalik, J. Walker, R. Shah, S. V. Cao, V. Paolone, A. Knight, André Rubbia, B. Bourguille, L. Magaletti, M. Gonin, Y. Nishimura, G. De Rosa, J. G. Walsh, S. M. Oser, Tsuyoshi Nakaya, Alexander N. Smirnov, Th. A. Mueller, T. Towstego, Z. Vallari, K. Wood, R. A. Owen, M. Batkiewicz-Kwasniak, D. Karlen, L. Maret, R. Akutsu, H. M. O'Keeffe, Y. Sonoda, P. N. Ratoff, T. Kutter, S. P. Kasetti, C. Ruggles, F. Iacob, L. Berns, E. D. Zimmerman, A. Cervera, A. Mefodiev, M. Ikeda, K. Nakayoshi, Kimihiro Okumura, N. Kukita, M. Licciardi, N. Chikuma, A. N. Khotjantsev, J. C. Nugent, S. King, T. Feusels, S. Bolognesi, Y. Ashida, A. Beloshapkin, Teppei Katori, K. Yamamoto, C. Wret, M. Guigue, J. A. Nowak, M. Miura, A. Shaikhiev, A. Chappell, T. Okusawa, M. O. Wascko, E. Kearns, S. L. Liu, C. Yanagisawa, Lars Eklund, Y. Oyama, J. Calcutt, G. Fiorillo, S. Berkman, B. Quilain, T. A. Doyle, P. Paudyal, C. Bronner, E. Radicioni, K. Niewczas, Hyun-Chul Kim, A. Izmaylov, J. Steinmann, M. M. Khabibullin, M. Zito, Hidekazu Kakuno, P. Novella, K. Nakamura, R. Wendell, E. Reinherz-Aronis, Y. Fukuda, G. Christodoulou, S. L. Cartwright, Vincenzo Berardi, D. Barrow, O. Drapier, L. Pickering, F. J. P. Soler, G. Yang, J. L. Palomino, J. Zalipska, E. T. Atkin, Y. Nakajima, K. Sakashita, M. Kuze, L. Marti-Magro, L. Munteanu, Alan Cosimo Ruggeri, K. Zaremba, Laura Gutermuth Anthony, C. Vilela, D. Fukuda, D. Sgalaberna, Hiroyuki Sekiya, F. Nova, T. Matsubara, C. Wilkinson, C. Touramanis, Y. Kato, M. Tajima, R. Fujita, S. Yen, K. Yasutome, D. L. Wark, S. Bienstock, L. O'Sullivan, A. Knox, M. Jiang, D. R. Hadley, S. Ban, Yusuke Koshio, Kendall Mahn, G. Vasseur, J. Lagoda, Yoshihiro Suzuki, L. N. Machado, Antonio Ereditato, Federico Sanchez, A. C. Weber, D. Brailsford, W. G. S. Vinning, J. Kameda, Y. Hayato, L. Ludovici, S. Murphy, N. Yershov, M. Ishitsuka, C. Giganti, S. Kuribayashi, J. R. Wilson, C. Jesús-Valls, Alexander Finch, S. Nakayama, Masayuki Nakahata, C. Pidcott, W. Shorrock, Kevin Scott McFarland, T. Radermacher, M. Posiadala-Zezula, Robert Wilson, T. Maruyama, Sy Suzuki, T. Wachala, M. Yu, S. Moriyama, Y. Seiya, T. V. Ngoc, M. Antonova, C. Barry, Y. Uchida, C. Checchia, T. Yano, H. Sobel, T. Koga, R.P. Kurjata, G. Collazuol, T. S. Nonnenmacher, Mark Scott, T. Yoshida, P. Hamacher-Baumann, S. R. Dennis, Y. Fujii, C. M. Schloesser, Jungsang Kim, A. D. Marino, A. Longhin, M. Friend, A. Shaykina, A. Blondel, M. Lamoureux, Masato Shiozawa, A. Takeda, B. Jamieson, A. Zalewska, A. C. Kaboth, N. Dokania, G. A. Fiorentini, S. R. Johnson, T. Golan, S. Emery-Schrenk, J. Holeczek, S. Zsoldos, A. Pritchard, V. Palladino, A. Shvartsman, T. Kobayashi, G. C. Penn, T. Sekiguchi, D. Bravo Berguño, W. Uno, Ahmed Ali, C. Pistillo, C. Riccio, Pablo Fernandez, A. Dabrowska, M. B. Smy, A. Kostin, B. A. Popov, C. Metelko, D. Coplowe, T. Dealtry, S. Bhadra, L. Cook, G.D. Barr, M. Jakkapu, D. Vargas, Xiao-yan Li, J. Dumarchez, J. Schwehr, M. Hartz, A. Bravar, S. Dolan, T. Ishii, C. Densham, A. Cudd, Y. Yamada, H. Kubo, M. J. Wilking, P. Jonsson, S. B. Boyd, S. Roth, Keigo Nakamura, L. Labarga, K. Fusshoeller, K. Gameil, J. Morrison, W. C. Parker, A. Zykova, M. Pavin, S. J. Jenkins, Gareth J. Barker, D. G. Payne, A. Nakamura, Kate Scholberg, J. P. Coleman, F. Shaker, T. Tsukamoto, H. K. Tanaka, J. F. Martin, M. Tzanov, G. Zarnecki, A. Rychter, J. Kisiel, K. Matsushita, A. Hiramoto, A. K. Ichikawa, M. Buizza Avanzini, L. L. Kormos, T. Hasegawa, D. Cherdack, T. Campbell, S. Valder, K. Abe, Y. Kataoka, G. Pintaudi, C. McGrew, A. Gorin, L. Koch, C. Andreopoulos, T. Vladisavljevic, Thorsten Lux, T. Lindner, T. Kikawa, S. Suvorov, R. P. Litchfield, F. Bench, T. Kajita, M. Lawe, M. Kabirnezhad, A. T. Suzuki, Y. Nagai, C. K. Jung, Akitaka Ariga, T. Hayashino, R. Fukuda, E. Mazzucato, Y. Asada, Oleg Mineev, T. Nakadaira, Shigeki Aoki, M. Ziembicki, Yufeng Wang, M. Hogan, V. Matveev, T. Ishida, T. Odagawa, K. Mavrokoridis, A. Konaka, A. Bubak, H. A. Tanaka, K. Iwamoto, Jaroslaw Pasternak, Y. Awataguchi, Marco Laveder, Patrick Dunne, Jan T. Sobczyk, S. Manly, P. F. Denner, C. Francois, A. Minamino, M. Malek, Shuji Tanaka, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), T2K, Science and Technology Facilities Council (STFC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Ministerio de Economía y Competitividad (España), Abe, K., Akutsu, R., Ali, A., Alt, C., Andreopoulos, C., Anthony, L., Antonova, M., Aoki, S., Ariga, A., Asada, Y., Ashida, Y., Atkin, E. T., Awataguchi, Y., Ban, S., Barbi, M., Barker, G. J., 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, S. B., Brailsford, D., Bravar, A., Bravo Berguno, D., Bronner, C., Bubak, A., Avanzini, M. Buizza, Calcutt, J., Campbell, T., Cao, S., Cartwright, S. L., Catanesi, M. G., 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, P. F., Dennis, S. R., Densham, C., Di Lodovico, F., Dokania, N., Dolan, S., Doyle, T. A., Drapier, O., Dumarchez, J., Dunne, P., Eklund, L., Emery-Schrenk, S., Ereditato, A., Fernandez, P., Feusels, T., Finch, A. J., Fiorentini, G. A., 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, D. R., Haigh, J. T., Hamacher-Baumann, P., Hartz, M., Hasegawa, T., Hastings, N. C., Hayashino, T., Hayato, Y., Hiramoto, A., Hogan, M., Holeczek, J., Van, N. T. Hong, Iacob, F., Ichikawa, A. K., Ikeda, M., Ishida, T., Ishii, T., Ishitsuka, M., Iwamoto, K., Izmaylov, A., Jakkapu, M., Jamieson, B., Jenkins, S. J., Jesus-Valls, C., Jiang, M., Johnson, S., Jonsson, P., Jung, C. K., Kabirnezhad, M., Kaboth, A. C., Kajita, T., Kakuno, H., Kameda, J., Karlen, D., Kasetti, S. P., 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, L. L., 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., Litcheld, R. P., Liu, S. L., Li, X., Longhin, A., Ludovici, L., Lu, X., Lux, T., Nascimento Machado, L., Magaletti, L., Mahn, K., Malek, M., Manly, S., Maret, L., Marino, A. D., Marti-Magro, L., Martin, J. F., Maruyama, T., Matsubara, T., Matsushita, K., Matveev, V, Mavrokoridis, K., Mazzucato, E., Mccarthy, M., Mccauley, N., Mcfarland, K. S., Mcgrew, C., Mefodiev, A., Metelko, C., Mezzetto, M., Minamino, A., Mineev, O., Mine, S., Miura, M., Bueno, L. Molina, Moriyama, S., Morrison, J., Mueller, Th A., Munteanu, L., Murphy, S., Nagai, Y., Nakadaira, T., Nakahata, M., Nakajima, Y., Nakamura, A., Nakamura, K. G., Nakamura, K., Nakayama, S., Nakaya, T., Nakayoshi, K., Nantais, C., Ngoc, T., V, Niewczas, K., Nishikawa, K., Nishimura, Y., Nonnenmacher, T. S., Nova, F., Novella, P., Nowak, J., Nugent, J. C., O'Keeffe, H. M., O'Sullivan, L., Odagawa, T., Okumura, K., Okusawa, T., Oser, S. M., Owen, R. A., Oyama, Y., Palladino, V, Palomino, J. L., Paolone, V, Parker, W. C., Pasternak, J., Paudyal, P., Pavin, M., Payne, D., Penn, G. C., Pickering, L., Pidcott, C., Pintaudi, G., Guerra, E. S. Pinzon, Pistillo, C., Popov, B., Porwit, K., Posiadala-Zezula, M., Pritchard, A., Quilain, B., Radermacher, T., Radicioni, E., Radics, B., Rato, P. N., Reinherz-Aronis, E., Riccio, C., Rondio, E., Roth, S., Rubbia, A., Ruggeri, A. C., Ruggles, C. A., Rychter, A., Sakashita, K., Sanchez, F., Schloesser, C. M., 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, J. T., Sobel, H., Soler, F. J. P., Sonoda, Y., Steinmann, J., Suvorov, S., Suzuki, A., Suzuki, S. Y., Suzuki, Y., Sztuc, A. A., Tada, M., Tajima, M., Takeda, A., Takeuchi, Y., Tanaka, H. K., Tanaka, H. A., Tanaka, S., Thompson, L. F., Toki, W., Touramanis, C., Towstego, T., Tsui, K. M., Tsukamoto, T., Tzanov, M., Uchida, Y., Uno, W., Vagins, M., Valder, S., Vallari, Z., Vargas, D., Vasseur, G., Vilela, C., Vinning, W. G. S., Vladisavljevic, T., Volkov, V. V., Wachala, T., Walker, J., Walsh, J. G., Wang, Y., Wark, D., Wascko, M. O., Weber, A., Wendell, R., Wilking, M. J., Wilkinson, C., Wilson, J. R., Wilson, R. J., 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, E. D., Zito, M., Zsoldos, S., and Zykova, A.
- Subjects
muon antineutrino beam ,General Physics and Astronomy ,antineutrino/mu: secondary beam ,KAMIOKANDE ,antineutrino/e: particle identification ,01 natural sciences ,09 Engineering ,High Energy Physics - Experiment ,High Energy Physics - Experiment (hep-ex) ,secondary beam [neutrino/mu] ,[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex] ,neutrino/e: particle identification ,QC ,Physics ,02 Physical Sciences ,J-PARC Lab ,T2K experiment ,electron antineutrino ,T2K Collaboration ,kinematics ,Physical Sciences ,Particle Physics - Experiment ,T2K experiment in an accelerator-produced ,General Physics ,530 Physics ,Physics, Multidisciplinary ,FOS: Physical sciences ,particle identification [antineutrino/e] ,Neutrino beam ,secondary beam [antineutrino/mu] ,Physics::Geophysics ,Nuclear physics ,0103 physical sciences ,mixing ,ddc:530 ,010306 general physics ,01 Mathematical Sciences ,Muon ,Science & Technology ,particle identification [neutrino/e] ,hep-ex ,background ,neutrino/mu: secondary beam ,antineutrino: oscillation ,oscillation [antineutrino] ,Elementary Particles and Fields ,High Energy Physics::Experiment ,PMNS ,Electron neutrino ,Beam (structure) ,Free parameter ,experimental results - Abstract
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 2.40 σ 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., Physical Review Letters, 124 (16), ISSN:0031-9007, ISSN:1079-7114
- Published
- 2019
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