First Direct Observation of Collider Neutrinos with FASER at the LHC
First Direct Observation of Collider Neutrinos with FASER at the LHC
We report the first direct observation of neutrino interactions at a particle collider experiment. Neutrino candidate events are identified in a 13.6 TeV center-of-mass energy $pp$ collision data set of 35.4 fb${}^{-1}$ using the active electronic components of the FASER detector at the Large Hadron Collider. The candidates are required to have a track propagating through the entire length of the FASER detector and be consistent with a muon neutrino charged-current interaction. We infer $153^{+12}_{-13}$ neutrino interactions with a significance of 16 standard deviations above the background-only hypothesis. These events are consistent with the characteristics expected from neutrino interactions in terms of secondary particle production and spatial distribution, and they imply the observation of both neutrinos and anti-neutrinos with an incident neutrino energy of significantly above 200 GeV.
Monica D'Onofrio、Noshin Tarannum、Giuseppe Iacobucci、Brian Petersen、Dimitar Mladenov、Tomohiro Inada、Carlo Alberto Fenoglio、Lorne Levinson、Anna Sfyrla、Claire Antel、Jinfeng Liu、Susanne Kuehn、Paola Scampoli、Charlotte Cavanagh、Stephen Gibson、Henso Abreu、Filippo Resnati、Didier Ferrere、Hiroki Rokujo、Xin Chen、Hiroaki Kawahara、Felix Kling、John Anders、Andrea Coccaro、Umut Kose、Carl Gwilliam、Rafaella Kotitsa、Lorenzo Paolozzi、Franck Cadoux、Alex Keyken、Zhen Hu、Fulvio Martinelli、Toshiyuki Nakano、Jorge Sabater-Iglesias、Tobias Blesgen、Serhan Tufanli、Enrique Kajomovitz、Deion Fellers、Ansh Desai、Akitaka Ariga、Svetlana Vasina、FASER Collaboration、Matteo Milanesio、Daniela K?ck、Helena Lefebvre、Daiki Hayakawa、Jeremy Atkinson、Eli Welch、Lydia Brenner、Magdalena Munker、Laurie Nevay、Friedemann Neuhaus、Shih-Chieh Hsu、Hidetoshi Otono、Hans Joos、Benedikt Vormwald、Francesco Pietropaolo、Savannah Shively、Stefano Zambito、Sune Jakobsen、David W. Casper、Sergey Dmitrievsky、Tobias Boeckh、Jamie Boyd、Ke Li、Eric Torrence、Florian U. Bernlochner、Tomoko Ariga、Sergio Gonzalez-Sevilla、Di Wang、Osamu Sato、Markus Prim、Yannick Favre、Ondrej Theiner、Yuri Gornushkin、Th¨|o Moretti、Josh McFayden、Jack MacDonald、Yosuke Takubo、Jonathan L. Feng、Chiara Magliocca、Hao Pang、Mitsuhiro Nakamura、Elisa Ruiz-Choliz、Matthias Schott、Michaela Queitsch-Maitland、Kristof Schmieden、Marzio Nessi
10.1103/PhysRevLett.131.031801
粒子探测技术、辐射探测技术、核仪器仪表物理学
Monica D'Onofrio,Noshin Tarannum,Giuseppe Iacobucci,Brian Petersen,Dimitar Mladenov,Tomohiro Inada,Carlo Alberto Fenoglio,Lorne Levinson,Anna Sfyrla,Claire Antel,Jinfeng Liu,Susanne Kuehn,Paola Scampoli,Charlotte Cavanagh,Stephen Gibson,Henso Abreu,Filippo Resnati,Didier Ferrere,Hiroki Rokujo,Xin Chen,Hiroaki Kawahara,Felix Kling,John Anders,Andrea Coccaro,Umut Kose,Carl Gwilliam,Rafaella Kotitsa,Lorenzo Paolozzi,Franck Cadoux,Alex Keyken,Zhen Hu,Fulvio Martinelli,Toshiyuki Nakano,Jorge Sabater-Iglesias,Tobias Blesgen,Serhan Tufanli,Enrique Kajomovitz,Deion Fellers,Ansh Desai,Akitaka Ariga,Svetlana Vasina,FASER Collaboration,Matteo Milanesio,Daniela K?ck,Helena Lefebvre,Daiki Hayakawa,Jeremy Atkinson,Eli Welch,Lydia Brenner,Magdalena Munker,Laurie Nevay,Friedemann Neuhaus,Shih-Chieh Hsu,Hidetoshi Otono,Hans Joos,Benedikt Vormwald,Francesco Pietropaolo,Savannah Shively,Stefano Zambito,Sune Jakobsen,David W. Casper,Sergey Dmitrievsky,Tobias Boeckh,Jamie Boyd,Ke Li,Eric Torrence,Florian U. Bernlochner,Tomoko Ariga,Sergio Gonzalez-Sevilla,Di Wang,Osamu Sato,Markus Prim,Yannick Favre,Ondrej Theiner,Yuri Gornushkin,Th¨|o Moretti,Josh McFayden,Jack MacDonald,Yosuke Takubo,Jonathan L. Feng,Chiara Magliocca,Hao Pang,Mitsuhiro Nakamura,Elisa Ruiz-Choliz,Matthias Schott,Michaela Queitsch-Maitland,Kristof Schmieden,Marzio Nessi.First Direct Observation of Collider Neutrinos with FASER at the LHC[EB/OL].(2023-03-24)[2025-07-16].https://arxiv.org/abs/2303.14185.点此复制
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