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Abraham RM, Anders J, Antel C, Ariga A, Ariga T, Atkinson J, Bernlochner FU, Boeckh T, Boyd J, Brenner L, Burger A, Cadoux F, Cardella R, Casper DW, Cavanagh C, Chen X, Coccaro A, Débieux S, D'Onofrio M, Desai A, Dmitrievsky S, Eley S, Favre Y, Fellers D, Feng JL, Fenoglio CA, Ferrere D, Fieg M, Filali W, Fujimori H, Garabaglu A, Gibson S, Gonzalez-Sevilla S, Gornushkin Y, Gwilliam C, Hayakawa D, Hsu SC, Hu Z, Iacobucci G, Inada T, Iodice L, Jakobsen S, Joos H, Kajomovitz E, Kanai T, Kawahara H, Keyken A, Kling F, Köck D, Kontaxakis P, Kose U, Kotitsa R, Kuehn S, Kugathasan T, Lefebvre H, Levinson L, Li K, Liu J, Lutz MS, MacDonald J, Magliocca C, Martinelli F, McCoy L, McFayden J, Medina AP, Milanesio M, Moretti T, Munker M, Nakamura M, Nakano T, Neuhaus F, Nevay L, Nonaka M, Okui K, Ohashi K, Otono H, Pang H, Paolozzi L, Petersen B, Prim M, Queitsch-Maitland M, Rokujo H, Ruiz-Choliz E, Rubbia A, Sabater-Iglesias J, Sato O, Scampoli P, Schmieden K, Schott M, Sfyrla A, Shamim M, Shively S, Takubo Y, Tarannum N, Theiner O, Torrence E, Vasina S, Vormwald B, Wang D, Wang Y, Welch E, Zahorec S, Zambito S, Zhang S. First Measurement of ν_{e} and ν_{μ} Interaction Cross Sections at the LHC with FASER's Emulsion Detector. PHYSICAL REVIEW LETTERS 2024; 133:021802. [PMID: 39073961 DOI: 10.1103/physrevlett.133.021802] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Accepted: 05/28/2024] [Indexed: 07/31/2024]
Abstract
The first results of the study of high-energy electron neutrino (ν_{e}) and muon neutrino (ν_{μ}) charged-current interactions in the FASERν emulsion-tungsten detector of the FASER experiment at the LHC are presented. A 128.8 kg subset of the FASERν volume was analyzed after exposure to 9.5 fb^{-1} of sqrt[s]=13.6 TeV pp data. Four (eight) ν_{e} (ν_{μ}) interaction candidate events are observed with a statistical significance of 5.2σ (5.7σ). This is the first direct observation of ν_{e} interactions at a particle collider and includes the highest-energy ν_{e} and ν_{μ} ever detected from an artificial source. The interaction cross section per nucleon σ/E_{ν} is measured over an energy range of 560-1740 GeV (520-1760 GeV) for ν_{e} (ν_{μ}) to be (1.2_{-0.7}^{+0.8})×10^{-38} cm^{2} GeV^{-1} [(0.5±0.2)×10^{-38} cm^{2} GeV^{-1}], consistent with standard model predictions. These are the first measurements of neutrino interaction cross sections in those energy ranges.
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Affiliation(s)
- Roshan Mammen Abraham
- Department of Physics and Astronomy, University of California, Irvine, California 92697-4575, USA
| | | | - Claire Antel
- Département de Physique Nucléaire et Corpusculaire, University of Geneva, CH-1211 Geneva 4, Switzerland
| | - Akitaka Ariga
- Albert Einstein Center for Fundamental Physics, Laboratory for High Energy Physics, University of Bern, Sidlerstrasse 5, CH-3012 Bern, Switzerland
- Department of Physics, Chiba University, 1-33 Yayoi-cho Inage-ku, 263-8522 Chiba, Japan
| | - Tomoko Ariga
- Kyushu University, Nishi-ku, 819-0395 Fukuoka, Japan
| | - Jeremy Atkinson
- Albert Einstein Center for Fundamental Physics, Laboratory for High Energy Physics, University of Bern, Sidlerstrasse 5, CH-3012 Bern, Switzerland
| | | | - Tobias Boeckh
- Universität Bonn, Regina-Pacis-Weg 3, D-53113 Bonn, Germany
| | | | - Lydia Brenner
- Nikhef National Institute for Subatomic Physics, Science Park 105, 1098 XG Amsterdam, Netherlands
| | | | - Franck Cadoux
- Département de Physique Nucléaire et Corpusculaire, University of Geneva, CH-1211 Geneva 4, Switzerland
| | - Roberto Cardella
- Département de Physique Nucléaire et Corpusculaire, University of Geneva, CH-1211 Geneva 4, Switzerland
| | - David W Casper
- Department of Physics and Astronomy, University of California, Irvine, California 92697-4575, USA
| | | | - Xin Chen
- Department of Physics, Tsinghua University, Beijing, China
| | - Andrea Coccaro
- INFN Sezione di Genova, Via Dodecaneso, 33-16146, Genova, Italy
| | - Stephane Débieux
- Département de Physique Nucléaire et Corpusculaire, University of Geneva, CH-1211 Geneva 4, Switzerland
| | | | - Ansh Desai
- University of Oregon, Eugene, Oregon 97403, USA
| | - Sergey Dmitrievsky
- Affiliated with an international laboratory covered by a cooperation agreement with CERN
| | - Sinead Eley
- University of Liverpool, Liverpool L69 3BX, United Kingdom
| | - Yannick Favre
- Département de Physique Nucléaire et Corpusculaire, University of Geneva, CH-1211 Geneva 4, Switzerland
| | | | - Jonathan L Feng
- Department of Physics and Astronomy, University of California, Irvine, California 92697-4575, USA
| | - Carlo Alberto Fenoglio
- Département de Physique Nucléaire et Corpusculaire, University of Geneva, CH-1211 Geneva 4, Switzerland
| | - Didier Ferrere
- Département de Physique Nucléaire et Corpusculaire, University of Geneva, CH-1211 Geneva 4, Switzerland
| | - Max Fieg
- Department of Physics and Astronomy, University of California, Irvine, California 92697-4575, USA
| | - Wissal Filali
- Universität Bonn, Regina-Pacis-Weg 3, D-53113 Bonn, Germany
| | - Haruhi Fujimori
- Department of Physics, Chiba University, 1-33 Yayoi-cho Inage-ku, 263-8522 Chiba, Japan
| | - Ali Garabaglu
- Department of Physics, University of Washington, P.O. Box 351560, Seattle, Washington 98195-1460, USA
| | - Stephen Gibson
- Royal Holloway, University of London, Egham, TW20 0EX, United Kingdom
| | - Sergio Gonzalez-Sevilla
- Département de Physique Nucléaire et Corpusculaire, University of Geneva, CH-1211 Geneva 4, Switzerland
| | - Yuri Gornushkin
- Affiliated with an international laboratory covered by a cooperation agreement with CERN
| | - Carl Gwilliam
- University of Liverpool, Liverpool L69 3BX, United Kingdom
| | - Daiki Hayakawa
- Department of Physics, Chiba University, 1-33 Yayoi-cho Inage-ku, 263-8522 Chiba, Japan
| | - Shih-Chieh Hsu
- Department of Physics, University of Washington, P.O. Box 351560, Seattle, Washington 98195-1460, USA
| | - Zhen Hu
- Department of Physics, Tsinghua University, Beijing, China
| | - Giuseppe Iacobucci
- Département de Physique Nucléaire et Corpusculaire, University of Geneva, CH-1211 Geneva 4, Switzerland
| | | | - Luca Iodice
- Département de Physique Nucléaire et Corpusculaire, University of Geneva, CH-1211 Geneva 4, Switzerland
| | | | - Hans Joos
- CERN, CH-1211 Geneva 23, Switzerland
- II. Physikalisches Institut, Universität Göttingen, Göttingen, Germany
| | - Enrique Kajomovitz
- Department of Physics and Astronomy, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Takumi Kanai
- Department of Physics, Chiba University, 1-33 Yayoi-cho Inage-ku, 263-8522 Chiba, Japan
| | | | - Alex Keyken
- Royal Holloway, University of London, Egham, TW20 0EX, United Kingdom
| | - Felix Kling
- Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | | | - Pantelis Kontaxakis
- Département de Physique Nucléaire et Corpusculaire, University of Geneva, CH-1211 Geneva 4, Switzerland
| | - Umut Kose
- ETH Zurich, 8092 Zurich, Switzerland
| | | | | | - Thanushan Kugathasan
- Département de Physique Nucléaire et Corpusculaire, University of Geneva, CH-1211 Geneva 4, Switzerland
| | - Helena Lefebvre
- Royal Holloway, University of London, Egham, TW20 0EX, United Kingdom
| | - Lorne Levinson
- Department of Particle Physics and Astrophysics, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Ke Li
- Department of Physics, University of Washington, P.O. Box 351560, Seattle, Washington 98195-1460, USA
| | - Jinfeng Liu
- Department of Physics, Tsinghua University, Beijing, China
| | | | | | - Chiara Magliocca
- Département de Physique Nucléaire et Corpusculaire, University of Geneva, CH-1211 Geneva 4, Switzerland
| | - Fulvio Martinelli
- Département de Physique Nucléaire et Corpusculaire, University of Geneva, CH-1211 Geneva 4, Switzerland
| | - Lawson McCoy
- Department of Physics and Astronomy, University of California, Irvine, California 92697-4575, USA
| | - Josh McFayden
- Department of Physics and Astronomy, University of Sussex, Sussex House, Falmer, Brighton, BN1 9RH, United Kingdom
| | - Andrea Pizarro Medina
- Département de Physique Nucléaire et Corpusculaire, University of Geneva, CH-1211 Geneva 4, Switzerland
| | - Matteo Milanesio
- Département de Physique Nucléaire et Corpusculaire, University of Geneva, CH-1211 Geneva 4, Switzerland
| | - Théo Moretti
- Département de Physique Nucléaire et Corpusculaire, University of Geneva, CH-1211 Geneva 4, Switzerland
| | - Magdalena Munker
- Département de Physique Nucléaire et Corpusculaire, University of Geneva, CH-1211 Geneva 4, Switzerland
| | | | | | | | | | - Motoya Nonaka
- Department of Physics, Chiba University, 1-33 Yayoi-cho Inage-ku, 263-8522 Chiba, Japan
| | - Kazuaki Okui
- Department of Physics, Chiba University, 1-33 Yayoi-cho Inage-ku, 263-8522 Chiba, Japan
| | - Ken Ohashi
- Albert Einstein Center for Fundamental Physics, Laboratory for High Energy Physics, University of Bern, Sidlerstrasse 5, CH-3012 Bern, Switzerland
| | | | - Hao Pang
- Department of Physics, Tsinghua University, Beijing, China
| | - Lorenzo Paolozzi
- CERN, CH-1211 Geneva 23, Switzerland
- Département de Physique Nucléaire et Corpusculaire, University of Geneva, CH-1211 Geneva 4, Switzerland
| | | | - Markus Prim
- Universität Bonn, Regina-Pacis-Weg 3, D-53113 Bonn, Germany
| | - Michaela Queitsch-Maitland
- School of Physics and Astronomy, Schuster Building, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Hiroki Rokujo
- Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
| | | | | | - Jorge Sabater-Iglesias
- Département de Physique Nucléaire et Corpusculaire, University of Geneva, CH-1211 Geneva 4, Switzerland
| | - Osamu Sato
- Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
| | - Paola Scampoli
- Albert Einstein Center for Fundamental Physics, Laboratory for High Energy Physics, University of Bern, Sidlerstrasse 5, CH-3012 Bern, Switzerland
- Dipartimento di Fisica "Ettore Pancini," Università di Napoli Federico II, Complesso Universitario di Monte S. Angelo, I-80126 Napoli, Italy
| | | | | | - Anna Sfyrla
- Département de Physique Nucléaire et Corpusculaire, University of Geneva, CH-1211 Geneva 4, Switzerland
| | | | - Savannah Shively
- Department of Physics and Astronomy, University of California, Irvine, California 92697-4575, USA
| | - Yosuke Takubo
- Institute of Particle and Nuclear Studies, KEK, Oho 1-1, Tsukuba, Ibaraki 305-0801, Japan
| | - Noshin Tarannum
- Département de Physique Nucléaire et Corpusculaire, University of Geneva, CH-1211 Geneva 4, Switzerland
| | - Ondrej Theiner
- Département de Physique Nucléaire et Corpusculaire, University of Geneva, CH-1211 Geneva 4, Switzerland
| | | | - Svetlana Vasina
- Affiliated with an international laboratory covered by a cooperation agreement with CERN
| | | | - Di Wang
- Department of Physics, Tsinghua University, Beijing, China
| | - Yuxiao Wang
- Department of Physics, Tsinghua University, Beijing, China
| | - Eli Welch
- Department of Physics and Astronomy, University of California, Irvine, California 92697-4575, USA
| | - Samuel Zahorec
- CERN, CH-1211 Geneva 23, Switzerland
- Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic
| | - Stefano Zambito
- Département de Physique Nucléaire et Corpusculaire, University of Geneva, CH-1211 Geneva 4, Switzerland
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