| Article | |
| Report number | arXiv:2303.14185 ; CERN-EP-2023-056 |
| Title | First Direct Observation of Collider Neutrinos with FASER at the LHC |
| Author(s) |
Abreu, Henso (Technion) ; Anders, John (CERN) ; Antel, Claire (Geneva U.) ; Ariga, Akitaka (Bern U., LHEP ; Chiba U.) ; Ariga, Tomoko (Kyushu U., Fukuoka (main)) ; Atkinson, Jeremy (Bern U., LHEP) ; Bernlochner, Florian U. (Bonn U.) ; Blesgen, Tobias (Bonn U.) ; Boeckh, Tobias (Bonn U.) ; Boyd, Jamie (CERN) ; Brenner, Lydia (NIKHEF, Amsterdam) ; Cadoux, Franck (Geneva U.) ; Casper, David W. (UC, Irvine) ; Cavanagh, Charlotte (U. Liverpool (main)) ; Chen, Xin (Tsinghua U., Beijing) ; Coccaro, Andrea (INFN, Genoa) ; Desai, Ansh (Oregon U.) ; Dmitrievsky, Sergey (Unlisted) ; D'Onofrio, Monica (U. Liverpool (main)) ; Favre, Yannick (Geneva U.) ; Fellers, Deion (Oregon U.) ; Feng, Jonathan L. (UC, Irvine) ; Fenoglio, Carlo Alberto (Geneva U.) ; Ferrere, Didier (Geneva U.) ; Gibson, Stephen (Royal Holloway, U. of London) ; Gonzalez-Sevilla, Sergio (Geneva U.) ; Gornushkin, Yuri (Unlisted) ; Gwilliam, Carl (U. Liverpool (main)) ; Hayakawa, Daiki (Chiba U.) ; Hsu, Shih-Chieh (Washington U., Seattle) ; Hu, Zhen (Tsinghua U., Beijing) ; Iacobucci, Giuseppe (Geneva U.) ; Inada, Tomohiro (Tsinghua U., Beijing) ; Jakobsen, Sune (CERN) ; Joos, Hans (CERN ; Gottingen U., II. Phys. Inst.) ; Kajomovitz, Enrique (Technion) ; Kawahara, Hiroaki (Kyushu U., Fukuoka (main)) ; Keyken, Alex (Royal Holloway, U. of London) ; Kling, Felix (DESY) ; Köck, Daniela (Oregon U.) ; Kose, Umut (CERN) ; Kotitsa, Rafaella (CERN) ; Kuehn, Susanne (CERN) ; Lefebvre, Helena (Royal Holloway, U. of London) ; Levinson, Lorne (Weizmann Inst.) ; Li, Ke (Washington U., Seattle) ; Liu, Jinfeng (Tsinghua U., Beijing) ; MacDonald, Jack (Mainz U., Inst. Phys.) ; Magliocca, Chiara (Geneva U.) ; Martinelli, Fulvio (Geneva U.) ; McFayden, Josh (Sussex U.) ; Milanesio, Matteo (Geneva U.) ; Mladenov, Dimitar (CERN) ; Moretti, Théo (Geneva U.) ; Munker, Magdalena (Geneva U.) ; Nakamura, Mitsuhiro (Nagoya U.) ; Nakano, Toshiyuki (Nagoya U.) ; Nessi, Marzio (Geneva U. ; CERN) ; Neuhaus, Friedemann (Mainz U., Inst. Phys.) ; Nevay, Laurie (CERN ; Royal Holloway, U. of London) ; Otono, Hidetoshi (Kyushu U., Fukuoka (main)) ; Pang, Hao (Tsinghua U., Beijing) ; Paolozzi, Lorenzo (Geneva U. ; CERN) ; Petersen, Brian (CERN) ; Pietropaolo, Francesco (CERN) ; Prim, Markus (Bonn U.) ; Queitsch-Maitland, Michaela (Manchester U.) ; Resnati, Filippo (CERN) ; Rokujo, Hiroki (Nagoya U.) ; Ruiz-Choliz, Elisa (Mainz U., Inst. Phys.) ; Sabater-Iglesias, Jorge (Geneva U.) ; Sato, Osamu (Nagoya U.) ; Scampoli, Paola (Bern U., LHEP ; Naples U.) ; Schmieden, Kristof (Mainz U., Inst. Phys.) ; Schott, Matthias (Mainz U., Inst. Phys.) ; Sfyrla, Anna (Geneva U.) ; Shively, Savannah (UC, Irvine) ; Takubo, Yosuke (KEK, Tsukuba ; INS, Tokyo) ; Tarannum, Noshin (Geneva U.) ; Theiner, Ondrej (Geneva U.) ; Torrence, Eric (Oregon U.) ; Tufanli, Serhan (CERN) ; Vasina, Svetlana (Unlisted) ; Vormwald, Benedikt (CERN) ; Wang, Di (Tsinghua U., Beijing) ; Welch, Eli (UC, Irvine) ; Zambito, Stefano (Geneva U.) |
| Corporate author(s) | The FASER collaboration |
| Publication | 2023-07-19 |
| Imprint | 22 Mar 2023 |
| Number of pages | 9 |
| Published in: | Phys. Rev. Lett. 131 (2023) 031801 |
| DOI | 10.1103/PhysRevLett.131.031801 |
| Subject category | Particle Physics - Experiment ; Particle Physics - Phenomenology |
| Accelerator/Facility, Experiment | CERN LHC ; FASER |
| Keywords | forward physics ; lepton production ; experimental results ; FASER ; Collider Neutrinos |
| Abstract | 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 a number of 153+12 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, imply the observation of both neutrinos and anti-neutrinos, and are consistent with an incident neutrino energy of significantly above 200 GeV. |
| Other source | Inspire |
| Copyright/License | Preprint: © 2023-2024 CERN (License: CC-BY-4.0) Publication: © 2023-2024 authors (License: CC BY 4.0), sponsored by SCOAP³ |
| Submitted by | jamie.boyd@cern.ch |
Record created 2023-03-22, last modified 2024-05-25