Journal article

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

  • Abe K University of Tokyo, Institute for Cosmic Ray Research, Kamioka Observatory, Kamioka, Japan.
  • Akutsu R University of Tokyo, Institute for Cosmic Ray Research, Research Center for Cosmic Neutrinos, Kashiwa, Japan.
  • Ali A Kyoto University, Department of Physics, Kyoto, Japan.
  • Alt C ETH Zurich, Institute for Particle Physics and Astrophysics, Zurich, Switzerland.
  • Andreopoulos C University of Liverpool, Department of Physics, Liverpool, United Kingdom.
  • Anthony L University of Liverpool, Department of Physics, Liverpool, United Kingdom.
  • Antonova M IFIC (CSIC & University of Valencia), Valencia, Spain.
  • Aoki S Kobe University, Kobe, Japan.
  • Ariga A University of Bern, Albert Einstein Center for Fundamental Physics, Laboratory for High Energy Physics (LHEP), Bern, Switzerland.
  • Asada Y Yokohama National University, Faculty of Engineering, Yokohama, Japan.
  • Ashida Y Kyoto University, Department of Physics, Kyoto, Japan.
  • Atkin ET Imperial College London, Department of Physics, London, United Kingdom.
  • Awataguchi Y Tokyo Metropolitan University, Department of Physics, Tokyo, Japan.
  • Ban S Kyoto University, Department of Physics, Kyoto, Japan.
  • Barbi M University of Regina, Department of Physics, Regina, Saskatchewan, Canada.
  • Barker GJ University of Warwick, Department of Physics, Coventry, United Kingdom.
  • Barr G Oxford University, Department of Physics, Oxford, United Kingdom.
  • Barrow D Oxford University, Department of Physics, Oxford, United Kingdom.
  • Barry C University of Liverpool, Department of Physics, Liverpool, United Kingdom.
  • Batkiewicz-Kwasniak M H. Niewodniczanski Institute of Nuclear Physics PAN, Cracow, Poland.
  • Beloshapkin A Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia.
  • Bench F University of Liverpool, Department of Physics, Liverpool, United Kingdom.
  • Berardi V INFN Sezione di Bari and Università e Politecnico di Bari, Dipartimento Interuniversitario di Fisica, Bari, Italy.
  • Berkman S University of British Columbia, Department of Physics and Astronomy, Vancouver, British Columbia, Canada.
  • Berns L Tokyo Institute of Technology, Department of Physics, Tokyo, Japan.
  • Bhadra S York University, Department of Physics and Astronomy, Toronto, Ontario, Canada.
  • Bienstock S Sorbonne Université, Université Paris Diderot, CNRS/IN2P3, Laboratoire de Physique Nucléaire et de Hautes Energies (LPNHE), Paris, France.
  • Blondel A University of Geneva, Section de Physique, DPNC, Geneva, Switzerland.
  • Bolognesi S IRFU, CEA Saclay, Gif-sur-Yvette, France.
  • Bourguille B Institut de Fisica d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra (Barcelona) Spain.
  • Boyd SB University of Warwick, Department of Physics, Coventry, United Kingdom.
  • Brailsford D Lancaster University, Physics Department, Lancaster, United Kingdom.
  • Bravar A University of Geneva, Section de Physique, DPNC, Geneva, Switzerland.
  • Bravo Berguño D University Autonoma Madrid, Department of Theoretical Physics, Madrid, Spain.
  • Bronner C University of Tokyo, Institute for Cosmic Ray Research, Kamioka Observatory, Kamioka, Japan.
  • Bubak A University of Silesia, Institute of Physics, Katowice, Poland.
  • Buizza Avanzini M Ecole Polytechnique, IN2P3-CNRS, Laboratoire Leprince-Ringuet, Palaiseau, France.
  • Calcutt J Michigan State University, Department of Physics and Astronomy, East Lansing, Michigan, USA.
  • Campbell T University of Colorado at Boulder, Department of Physics, Boulder, Colorado, USA.
  • Cao S High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan.
  • Cartwright SL University of Sheffield, Department of Physics and Astronomy, Sheffield, United Kingdom.
  • Catanesi MG INFN Sezione di Bari and Università e Politecnico di Bari, Dipartimento Interuniversitario di Fisica, Bari, Italy.
  • Cervera A IFIC (CSIC & University of Valencia), Valencia, Spain.
  • Chappell A University of Warwick, Department of Physics, Coventry, United Kingdom.
  • Checchia C INFN Sezione di Padova and Università di Padova, Dipartimento di Fisica, Padova, Italy.
  • Cherdack D University of Houston, Department of Physics, Houston, Texas, USA.
  • Chikuma N University of Tokyo, Department of Physics, Tokyo, Japan.
  • Christodoulou G CERN European Organization for Nuclear Research, CH-1211 Genève 23, Switzerland.
  • Coleman J University of Liverpool, Department of Physics, Liverpool, United Kingdom.
  • Collazuol G INFN Sezione di Padova and Università di Padova, Dipartimento di Fisica, Padova, Italy.
  • Cook L Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba, Japan.
  • Coplowe D Oxford University, Department of Physics, Oxford, United Kingdom.
  • Cudd A Michigan State University, Department of Physics and Astronomy, East Lansing, Michigan, USA.
  • Dabrowska A H. Niewodniczanski Institute of Nuclear Physics PAN, Cracow, Poland.
  • De Rosa G INFN Sezione di Napoli and Università di Napoli, Dipartimento di Fisica, Napoli, Italy.
  • Dealtry T Lancaster University, Physics Department, Lancaster, United Kingdom.
  • Denner PF University of Warwick, Department of Physics, Coventry, United Kingdom.
  • Dennis SR University of Liverpool, Department of Physics, Liverpool, United Kingdom.
  • Densham C STFC, Rutherford Appleton Laboratory, Harwell Oxford, and Daresbury Laboratory, Warrington, United Kingdom.
  • Di Lodovico F King's College London, Department of Physics, Strand, London WC2R 2LS, United Kingdom.
  • Dokania N State University of New York at Stony Brook, Department of Physics and Astronomy, Stony Brook, New York, USA.
  • Dolan S CERN European Organization for Nuclear Research, CH-1211 Genève 23, Switzerland.
  • Doyle TA Lancaster University, Physics Department, Lancaster, United Kingdom.
  • Drapier O Ecole Polytechnique, IN2P3-CNRS, Laboratoire Leprince-Ringuet, Palaiseau, France.
  • Dumarchez J Sorbonne Université, Université Paris Diderot, CNRS/IN2P3, Laboratoire de Physique Nucléaire et de Hautes Energies (LPNHE), Paris, France.
  • Dunne P Imperial College London, Department of Physics, London, United Kingdom.
  • Eklund L University of Glasgow, School of Physics and Astronomy, Glasgow, United Kingdom.
  • Emery-Schrenk S IRFU, CEA Saclay, Gif-sur-Yvette, France.
  • Ereditato A University of Bern, Albert Einstein Center for Fundamental Physics, Laboratory for High Energy Physics (LHEP), Bern, Switzerland.
  • Fernandez P IFIC (CSIC & University of Valencia), Valencia, Spain.
  • Feusels T University of British Columbia, Department of Physics and Astronomy, Vancouver, British Columbia, Canada.
  • Finch AJ Lancaster University, Physics Department, Lancaster, United Kingdom.
  • Fiorentini GA York University, Department of Physics and Astronomy, Toronto, Ontario, Canada.
  • Fiorillo G INFN Sezione di Napoli and Università di Napoli, Dipartimento di Fisica, Napoli, Italy.
  • Francois C University of Bern, Albert Einstein Center for Fundamental Physics, Laboratory for High Energy Physics (LHEP), Bern, Switzerland.
  • Friend M High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan.
  • Fujii Y High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan.
  • Fujita R University of Tokyo, Department of Physics, Tokyo, Japan.
  • Fukuda D Okayama University, Department of Physics, Okayama, Japan.
  • Fukuda R Tokyo University of Science, Faculty of Science and Technology, Department of Physics, Noda, Chiba, Japan.
  • Fukuda Y Miyagi University of Education, Department of Physics, Sendai, Japan.
  • Fusshoeller K ETH Zurich, Institute for Particle Physics and Astrophysics, Zurich, Switzerland.
  • Gameil K University of British Columbia, Department of Physics and Astronomy, Vancouver, British Columbia, Canada.
  • Giganti C Sorbonne Université, Université Paris Diderot, CNRS/IN2P3, Laboratoire de Physique Nucléaire et de Hautes Energies (LPNHE), Paris, France.
  • Golan T Wroclaw University, Faculty of Physics and Astronomy, Wroclaw, Poland.
  • Gonin M Ecole Polytechnique, IN2P3-CNRS, Laboratoire Leprince-Ringuet, Palaiseau, France.
  • Gorin A Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia.
  • Guigue M Sorbonne Université, Université Paris Diderot, CNRS/IN2P3, Laboratoire de Physique Nucléaire et de Hautes Energies (LPNHE), Paris, France.
  • Hadley DR University of Warwick, Department of Physics, Coventry, United Kingdom.
  • Haigh JT University of Warwick, Department of Physics, Coventry, United Kingdom.
  • Hamacher-Baumann P RWTH Aachen University, III. Physikalisches Institut, Aachen, Germany.
  • Hartz M Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba, Japan.
  • Hasegawa T High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan.
  • Hastings NC High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan.
  • Hayashino T Kyoto University, Department of Physics, Kyoto, Japan.
  • Hayato Y Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba, Japan.
  • Hiramoto A Kyoto University, Department of Physics, Kyoto, Japan.
  • Hogan M Colorado State University, Department of Physics, Fort Collins, Colorado, USA.
  • Holeczek J University of Silesia, Institute of Physics, Katowice, Poland.
  • Hong Van NT Institute For Interdisciplinary Research in Science and Education (IFIRSE), ICISE, Quy Nhon, Vietnam.
  • Iacob F INFN Sezione di Padova and Università di Padova, Dipartimento di Fisica, Padova, Italy.
  • Ichikawa AK Kyoto University, Department of Physics, Kyoto, Japan.
  • Ikeda M University of Tokyo, Institute for Cosmic Ray Research, Kamioka Observatory, Kamioka, Japan.
  • Ishida T High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan.
  • Ishii T High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan.
  • Ishitsuka M Tokyo University of Science, Faculty of Science and Technology, Department of Physics, Noda, Chiba, Japan.
  • Iwamoto K University of Tokyo, Department of Physics, Tokyo, Japan.
  • Izmaylov A IFIC (CSIC & University of Valencia), Valencia, Spain.
  • Jakkapu M High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan.
  • Jamieson B University of Winnipeg, Department of Physics, Winnipeg, Manitoba, Canada.
  • Jenkins SJ University of Sheffield, Department of Physics and Astronomy, Sheffield, United Kingdom.
  • Jesús-Valls C Institut de Fisica d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra (Barcelona) Spain.
  • Jiang M Kyoto University, Department of Physics, Kyoto, Japan.
  • Johnson S University of Colorado at Boulder, Department of Physics, Boulder, Colorado, USA.
  • Jonsson P Imperial College London, Department of Physics, London, United Kingdom.
  • Jung CK State University of New York at Stony Brook, Department of Physics and Astronomy, Stony Brook, New York, USA.
  • Kabirnezhad M Oxford University, Department of Physics, Oxford, United Kingdom.
  • Kaboth AC Royal Holloway University of London, Department of Physics, Egham, Surrey, United Kingdom.
  • Kajita T University of Tokyo, Institute for Cosmic Ray Research, Research Center for Cosmic Neutrinos, Kashiwa, Japan.
  • Kakuno H Tokyo Metropolitan University, Department of Physics, Tokyo, Japan.
  • Kameda J University of Tokyo, Institute for Cosmic Ray Research, Kamioka Observatory, Kamioka, Japan.
  • Karlen D TRIUMF, Vancouver, British Columbia, Canada.
  • Kasetti SP Louisiana State University, Department of Physics and Astronomy, Baton Rouge, Louisiana, USA.
  • Kataoka Y University of Tokyo, Institute for Cosmic Ray Research, Kamioka Observatory, Kamioka, Japan.
  • Katori T King's College London, Department of Physics, Strand, London WC2R 2LS, United Kingdom.
  • Kato Y University of Tokyo, Institute for Cosmic Ray Research, Kamioka Observatory, Kamioka, Japan.
  • Kearns E Boston University, Department of Physics, Boston, Massachusetts, USA.
  • Khabibullin M Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia.
  • Khotjantsev A Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia.
  • Kikawa T Kyoto University, Department of Physics, Kyoto, Japan.
  • Kim H Osaka City University, Department of Physics, Osaka, Japan.
  • Kim J University of British Columbia, Department of Physics and Astronomy, Vancouver, British Columbia, Canada.
  • King S Queen Mary University of London, School of Physics and Astronomy, London, United Kingdom.
  • Kisiel J University of Silesia, Institute of Physics, Katowice, Poland.
  • Knight A University of Warwick, Department of Physics, Coventry, United Kingdom.
  • Knox A Lancaster University, Physics Department, Lancaster, United Kingdom.
  • Kobayashi T High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan.
  • Koch L Oxford University, Department of Physics, Oxford, United Kingdom.
  • Koga T University of Tokyo, Department of Physics, Tokyo, Japan.
  • Konaka A TRIUMF, Vancouver, British Columbia, Canada.
  • Kormos LL Lancaster University, Physics Department, Lancaster, United Kingdom.
  • Koshio Y Okayama University, Department of Physics, Okayama, Japan.
  • Kostin A Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia.
  • Kowalik K National Centre for Nuclear Research, Warsaw, Poland.
  • Kubo H Kyoto University, Department of Physics, Kyoto, Japan.
  • Kudenko Y Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia.
  • Kukita N Osaka City University, Department of Physics, Osaka, Japan.
  • Kuribayashi S Kyoto University, Department of Physics, Kyoto, Japan.
  • Kurjata R Warsaw University of Technology, Institute of Radioelectronics and Multimedia Technology, Warsaw, Poland.
  • Kutter T Louisiana State University, Department of Physics and Astronomy, Baton Rouge, Louisiana, USA.
  • Kuze M Tokyo Institute of Technology, Department of Physics, Tokyo, Japan.
  • Labarga L University Autonoma Madrid, Department of Theoretical Physics, Madrid, Spain.
  • Lagoda J National Centre for Nuclear Research, Warsaw, Poland.
  • Lamoureux M INFN Sezione di Padova and Università di Padova, Dipartimento di Fisica, Padova, Italy.
  • Laveder M INFN Sezione di Padova and Università di Padova, Dipartimento di Fisica, Padova, Italy.
  • Lawe M Lancaster University, Physics Department, Lancaster, United Kingdom.
  • Licciardi M Ecole Polytechnique, IN2P3-CNRS, Laboratoire Leprince-Ringuet, Palaiseau, France.
  • Lindner T TRIUMF, Vancouver, British Columbia, Canada.
  • Litchfield RP University of Glasgow, School of Physics and Astronomy, Glasgow, United Kingdom.
  • Liu SL State University of New York at Stony Brook, Department of Physics and Astronomy, Stony Brook, New York, USA.
  • Li X State University of New York at Stony Brook, Department of Physics and Astronomy, Stony Brook, New York, USA.
  • Longhin A INFN Sezione di Padova and Università di Padova, Dipartimento di Fisica, Padova, Italy.
  • Ludovici L INFN Sezione di Roma and Università di Roma "La Sapienza", Roma, Italy.
  • Lu X Oxford University, Department of Physics, Oxford, United Kingdom.
  • Lux T Institut de Fisica d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra (Barcelona) Spain.
  • Machado LN INFN Sezione di Napoli and Università di Napoli, Dipartimento di Fisica, Napoli, Italy.
  • Magaletti L INFN Sezione di Bari and Università e Politecnico di Bari, Dipartimento Interuniversitario di Fisica, Bari, Italy.
  • Mahn K Michigan State University, Department of Physics and Astronomy, East Lansing, Michigan, USA.
  • Malek M University of Sheffield, Department of Physics and Astronomy, Sheffield, United Kingdom.
  • Manly S University of Rochester, Department of Physics and Astronomy, Rochester, New York, USA.
  • Maret L University of Geneva, Section de Physique, DPNC, Geneva, Switzerland.
  • Marino AD University of Colorado at Boulder, Department of Physics, Boulder, Colorado, USA.
  • Marti-Magro L Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba, Japan.
  • Martin JF University of Toronto, Department of Physics, Toronto, Ontario, Canada.
  • Maruyama T High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan.
  • Matsubara T High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan.
  • Matsushita K University of Tokyo, Department of Physics, Tokyo, Japan.
  • Matveev V Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia.
  • Mavrokoridis K University of Liverpool, Department of Physics, Liverpool, United Kingdom.
  • Mazzucato E IRFU, CEA Saclay, Gif-sur-Yvette, France.
  • McCarthy M York University, Department of Physics and Astronomy, Toronto, Ontario, Canada.
  • McCauley N University of Liverpool, Department of Physics, Liverpool, United Kingdom.
  • McFarland KS University of Rochester, Department of Physics and Astronomy, Rochester, New York, USA.
  • McGrew C State University of New York at Stony Brook, Department of Physics and Astronomy, Stony Brook, New York, USA.
  • Mefodiev A Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia.
  • Metelko C University of Liverpool, Department of Physics, Liverpool, United Kingdom.
  • Mezzetto M INFN Sezione di Padova and Università di Padova, Dipartimento di Fisica, Padova, Italy.
  • Minamino A Yokohama National University, Faculty of Engineering, Yokohama, Japan.
  • Mineev O Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia.
  • Mine S University of California, Irvine, Department of Physics and Astronomy, Irvine, California, USA.
  • Miura M University of Tokyo, Institute for Cosmic Ray Research, Kamioka Observatory, Kamioka, Japan.
  • Molina Bueno L ETH Zurich, Institute for Particle Physics and Astrophysics, Zurich, Switzerland.
  • Moriyama S University of Tokyo, Institute for Cosmic Ray Research, Kamioka Observatory, Kamioka, Japan.
  • Morrison J Michigan State University, Department of Physics and Astronomy, East Lansing, Michigan, USA.
  • Mueller TA Ecole Polytechnique, IN2P3-CNRS, Laboratoire Leprince-Ringuet, Palaiseau, France.
  • Munteanu L IRFU, CEA Saclay, Gif-sur-Yvette, France.
  • Murphy S ETH Zurich, Institute for Particle Physics and Astrophysics, Zurich, Switzerland.
  • Nagai Y University of Colorado at Boulder, Department of Physics, Boulder, Colorado, USA.
  • Nakadaira T High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan.
  • Nakahata M Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba, Japan.
  • Nakajima Y University of Tokyo, Institute for Cosmic Ray Research, Kamioka Observatory, Kamioka, Japan.
  • Nakamura A Okayama University, Department of Physics, Okayama, Japan.
  • Nakamura KG Kyoto University, Department of Physics, Kyoto, Japan.
  • Nakamura K High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan.
  • Nakayama S Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba, Japan.
  • Nakaya T Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba, Japan.
  • Nakayoshi K High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan.
  • Nantais C University of Toronto, Department of Physics, Toronto, Ontario, Canada.
  • Ngoc TV Institute For Interdisciplinary Research in Science and Education (IFIRSE), ICISE, Quy Nhon, Vietnam.
  • Niewczas K Wroclaw University, Faculty of Physics and Astronomy, Wroclaw, Poland.
  • Nishikawa K High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan.
  • Nishimura Y Keio University, Department of Physics, Kanagawa, Japan.
  • Nonnenmacher TS Imperial College London, Department of Physics, London, United Kingdom.
  • Nova F STFC, Rutherford Appleton Laboratory, Harwell Oxford, and Daresbury Laboratory, Warrington, United Kingdom.
  • Novella P IFIC (CSIC & University of Valencia), Valencia, Spain.
  • Nowak J Lancaster University, Physics Department, Lancaster, United Kingdom.
  • Nugent JC University of Glasgow, School of Physics and Astronomy, Glasgow, United Kingdom.
  • O'Keeffe HM Lancaster University, Physics Department, Lancaster, United Kingdom.
  • O'Sullivan L University of Sheffield, Department of Physics and Astronomy, Sheffield, United Kingdom.
  • Odagawa T Kyoto University, Department of Physics, Kyoto, Japan.
  • Okumura K Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba, Japan.
  • Okusawa T Osaka City University, Department of Physics, Osaka, Japan.
  • Oser SM University of British Columbia, Department of Physics and Astronomy, Vancouver, British Columbia, Canada.
  • Owen RA Queen Mary University of London, School of Physics and Astronomy, London, United Kingdom.
  • Oyama Y High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan.
  • Palladino V INFN Sezione di Napoli and Università di Napoli, Dipartimento di Fisica, Napoli, Italy.
  • Palomino JL State University of New York at Stony Brook, Department of Physics and Astronomy, Stony Brook, New York, USA.
  • Paolone V University of Pittsburgh, Department of Physics and Astronomy, Pittsburgh, Pennsylvania, USA.
  • Parker WC Royal Holloway University of London, Department of Physics, Egham, Surrey, United Kingdom.
  • Pasternak J Imperial College London, Department of Physics, London, United Kingdom.
  • Paudyal P University of Liverpool, Department of Physics, Liverpool, United Kingdom.
  • Pavin M TRIUMF, Vancouver, British Columbia, Canada.
  • Payne D University of Liverpool, Department of Physics, Liverpool, United Kingdom.
  • Penn GC University of Liverpool, Department of Physics, Liverpool, United Kingdom.
  • Pickering L Michigan State University, Department of Physics and Astronomy, East Lansing, Michigan, USA.
  • Pidcott C University of Sheffield, Department of Physics and Astronomy, Sheffield, United Kingdom.
  • Pintaudi G Yokohama National University, Faculty of Engineering, Yokohama, Japan.
  • Pinzon Guerra ES York University, Department of Physics and Astronomy, Toronto, Ontario, Canada.
  • Pistillo C University of Bern, Albert Einstein Center for Fundamental Physics, Laboratory for High Energy Physics (LHEP), Bern, Switzerland.
  • Popov B Sorbonne Université, Université Paris Diderot, CNRS/IN2P3, Laboratoire de Physique Nucléaire et de Hautes Energies (LPNHE), Paris, France.
  • Porwit K University of Silesia, Institute of Physics, Katowice, Poland.
  • Posiadala-Zezula M University of Warsaw, Faculty of Physics, Warsaw, Poland.
  • Pritchard A University of Liverpool, Department of Physics, Liverpool, United Kingdom.
  • Quilain B Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba, Japan.
  • Radermacher T RWTH Aachen University, III. Physikalisches Institut, Aachen, Germany.
  • Radicioni E INFN Sezione di Bari and Università e Politecnico di Bari, Dipartimento Interuniversitario di Fisica, Bari, Italy.
  • Radics B ETH Zurich, Institute for Particle Physics and Astrophysics, Zurich, Switzerland.
  • Ratoff PN Lancaster University, Physics Department, Lancaster, United Kingdom.
  • Reinherz-Aronis E Colorado State University, Department of Physics, Fort Collins, Colorado, USA.
  • Riccio C INFN Sezione di Napoli and Università di Napoli, Dipartimento di Fisica, Napoli, Italy.
  • Rondio E National Centre for Nuclear Research, Warsaw, Poland.
  • Roth S RWTH Aachen University, III. Physikalisches Institut, Aachen, Germany.
  • Rubbia A ETH Zurich, Institute for Particle Physics and Astrophysics, Zurich, Switzerland.
  • Ruggeri AC INFN Sezione di Napoli and Università di Napoli, Dipartimento di Fisica, Napoli, Italy.
  • Ruggles CA University of Glasgow, School of Physics and Astronomy, Glasgow, United Kingdom.
  • Rychter A Warsaw University of Technology, Institute of Radioelectronics and Multimedia Technology, Warsaw, Poland.
  • Sakashita K High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan.
  • Sánchez F University of Geneva, Section de Physique, DPNC, Geneva, Switzerland.
  • Schloesser CM ETH Zurich, Institute for Particle Physics and Astrophysics, Zurich, Switzerland.
  • Scholberg K Duke University, Department of Physics, Durham, North Carolina, USA.
  • Schwehr J Colorado State University, Department of Physics, Fort Collins, Colorado, USA.
  • Scott M Imperial College London, Department of Physics, London, United Kingdom.
  • Seiya Y Osaka City University, Department of Physics, Osaka, Japan.
  • Sekiguchi T High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan.
  • Sekiya H Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba, Japan.
  • Sgalaberna D CERN European Organization for Nuclear Research, CH-1211 Genève 23, Switzerland.
  • Shah R Oxford University, Department of Physics, Oxford, United Kingdom.
  • Shaikhiev A Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia.
  • Shaker F University of Winnipeg, Department of Physics, Winnipeg, Manitoba, Canada.
  • Shaykina A Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia.
  • Shiozawa M Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba, Japan.
  • Shorrock W Imperial College London, Department of Physics, London, United Kingdom.
  • Shvartsman A Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia.
  • Smirnov A Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia.
  • Smy M University of California, Irvine, Department of Physics and Astronomy, Irvine, California, USA.
  • Sobczyk JT Wroclaw University, Faculty of Physics and Astronomy, Wroclaw, Poland.
  • Sobel H University of California, Irvine, Department of Physics and Astronomy, Irvine, California, USA.
  • Soler FJP University of Glasgow, School of Physics and Astronomy, Glasgow, United Kingdom.
  • Sonoda Y University of Tokyo, Institute for Cosmic Ray Research, Kamioka Observatory, Kamioka, Japan.
  • Steinmann J RWTH Aachen University, III. Physikalisches Institut, Aachen, Germany.
  • Suvorov S IRFU, CEA Saclay, Gif-sur-Yvette, France.
  • Suzuki A Kobe University, Kobe, Japan.
  • Suzuki SY High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan.
  • Suzuki Y Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba, Japan.
  • Sztuc AA Imperial College London, Department of Physics, London, United Kingdom.
  • Tada M High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan.
  • Tajima M Kyoto University, Department of Physics, Kyoto, Japan.
  • Takeda A University of Tokyo, Institute for Cosmic Ray Research, Kamioka Observatory, Kamioka, Japan.
  • Takeuchi Y Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba, Japan.
  • Tanaka HK University of Tokyo, Institute for Cosmic Ray Research, Kamioka Observatory, Kamioka, Japan.
  • Tanaka HA SLAC National Accelerator Laboratory, Stanford University, Menlo Park, California, USA.
  • Tanaka S Osaka City University, Department of Physics, Osaka, Japan.
  • Thompson LF University of Sheffield, Department of Physics and Astronomy, Sheffield, United Kingdom.
  • Toki W Colorado State University, Department of Physics, Fort Collins, Colorado, USA.
  • Touramanis C University of Liverpool, Department of Physics, Liverpool, United Kingdom.
  • Towstego T University of Toronto, Department of Physics, Toronto, Ontario, Canada.
  • Tsui KM University of Liverpool, Department of Physics, Liverpool, United Kingdom.
  • Tsukamoto T High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan.
  • Tzanov M Louisiana State University, Department of Physics and Astronomy, Baton Rouge, Louisiana, USA.
  • Uchida Y Imperial College London, Department of Physics, London, United Kingdom.
  • Uno W Kyoto University, Department of Physics, Kyoto, Japan.
  • Vagins M University of California, Irvine, Department of Physics and Astronomy, Irvine, California, USA.
  • Valder S University of Warwick, Department of Physics, Coventry, United Kingdom.
  • Vallari Z State University of New York at Stony Brook, Department of Physics and Astronomy, Stony Brook, New York, USA.
  • Vargas D Institut de Fisica d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra (Barcelona) Spain.
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  • 2020-05-09
Published in:
  • Physical review letters. - 2020
English 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.
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