Physics Letters B (Jan 2024)
Search for dark photons with the FASER detector at the LHC
- Henso Abreu,
- John Anders,
- Claire Antel,
- Akitaka Ariga,
- Tomoko Ariga,
- Jeremy Atkinson,
- Florian U. Bernlochner,
- Tobias Boeckh,
- Jamie Boyd,
- Lydia Brenner,
- Franck Cadoux,
- David W. Casper,
- Charlotte Cavanagh,
- Xin Chen,
- Andrea Coccaro,
- Monica D'Onofrio,
- Ansh Desai,
- Sergey Dmitrievsky,
- Candan Dozen,
- Yannick Favre,
- Deion Fellers,
- Jonathan L. Feng,
- Carlo Alberto Fenoglio,
- Didier Ferrere,
- Iftah Galon,
- Stephen Gibson,
- Sergio Gonzalez-Sevilla,
- Yuri Gornushkin,
- Carl Gwilliam,
- Daiki Hayakawa,
- Shih-Chieh Hsu,
- Zhen Hu,
- Giuseppe Iacobucci,
- Tomohiro Inada,
- Sune Jakobsen,
- Hans Joos,
- Enrique Kajomovitz,
- Hiroaki Kawahara,
- Alex Keyken,
- Felix Kling,
- Daniela Köck,
- Umut Kose,
- Rafaella Kotitsa,
- Susanne Kuehn,
- Helena Lefebvre,
- Lorne Levinson,
- Ke Li,
- Jinfeng Liu,
- Jack MacDonald,
- Chiara Magliocca,
- Fulvio Martinelli,
- Josh McFayden,
- Sam Meehan,
- Matteo Milanesio,
- Théo Moretti,
- Magdalena Munker,
- Mitsuhiro Nakamura,
- Toshiyuki Nakano,
- Friedemann Neuhaus,
- Laurie Nevay,
- Ken Ohashi,
- Hidetoshi Otono,
- Hao Pang,
- Lorenzo Paolozzi,
- Brian Petersen,
- Markus Prim,
- Michaela Queitsch-Maitland,
- Hiroki Rokujo,
- Elisa Ruiz-Choliz,
- Jorge Sabater-Iglesias,
- Jakob Salfeld-Nebgen,
- Osamu Sato,
- Paola Scampoli,
- Kristof Schmieden,
- Matthias Schott,
- Anna Sfyrla,
- Savannah Shively,
- Yosuke Takubo,
- Noshin Tarannum,
- Ondrej Theiner,
- Eric Torrence,
- Sebastian Trojanowski,
- Svetlana Vasina,
- Benedikt Vormwald,
- Di Wang,
- Eli Welch,
- Samuel Zahorec,
- Stefano Zambito
Affiliations
- Henso Abreu
- Department of Physics and Astronomy, Technion—Israel Institute of Technology, Haifa 32000, Israel
- John Anders
- CERN, CH-1211 Geneva 23, Switzerland
- 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
- Florian U. Bernlochner
- Universität Bonn, Regina-Pacis-Weg 3, D-53113 Bonn, Germany
- Tobias Boeckh
- Universität Bonn, Regina-Pacis-Weg 3, D-53113 Bonn, Germany
- Jamie Boyd
- CERN, CH-1211 Geneva 23, Switzerland
- 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
- David W. Casper
- Department of Physics and Astronomy, University of California, Irvine, CA 92697-4575, USA
- Charlotte Cavanagh
- University of Liverpool, Liverpool L69 3BX, United Kingdom
- Xin Chen
- Department of Physics, Tsinghua University, Beijing, China
- Andrea Coccaro
- INFN Sezione di Genova, Via Dodecaneso, 33–16146, Genova, Italy
- Monica D'Onofrio
- University of Liverpool, Liverpool L69 3BX, United Kingdom
- Ansh Desai
- University of Oregon, Eugene, OR 97403, USA
- Sergey Dmitrievsky
- Affiliated with an international laboratory covered by a cooperation agreement with CERN
- Candan Dozen
- Institut de Physique des 2 Infinis de Lyon (IP2I), Villeurbanne, France
- Yannick Favre
- Département de Physique Nucléaire et Corpusculaire, University of Geneva, CH-1211, Geneva 4, Switzerland
- Deion Fellers
- University of Oregon, Eugene, OR 97403, USA
- Jonathan L. Feng
- Department of Physics and Astronomy, University of California, Irvine, CA 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
- Iftah Galon
- Department of Physics and Astronomy, Technion—Israel Institute of Technology, Haifa 32000, Israel; CERN, CH-1211 Geneva 23, Switzerland; Département de Physique Nucléaire et Corpusculaire, University of Geneva, CH-1211, Geneva 4, Switzerland; 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; Kyushu University, Nishi-ku, 819-0395 Fukuoka, Japan; Universität Bonn, Regina-Pacis-Weg 3, D-53113 Bonn, Germany; Nikhef National Institute for Subatomic Physics, Science Park 105, 1098 XG Amsterdam, Netherlands; Department of Physics and Astronomy, University of California, Irvine, CA 92697-4575, USA; University of Liverpool, Liverpool L69 3BX, United Kingdom; Department of Physics, Tsinghua University, Beijing, China; INFN Sezione di Genova, Via Dodecaneso, 33–16146, Genova, Italy; University of Oregon, Eugene, OR 97403, USA; Affiliated with an international laboratory covered by a cooperation agreement with CERN; Institut de Physique des 2 Infinis de Lyon (IP2I), Villeurbanne, France; Royal Holloway, University of London, Egham, TW20 0EX, United Kingdom; Department of Physics, University of Washington, PO Box 351560, Seattle, WA 98195-1460, USA; II. Physikalisches Institut, Universität Göttingen, Göttingen, Germany; Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany; Department of Particle Physics and Astrophysics, Weizmann Institute of Science, Rehovot 76100, Israel; Institut für Physik, Universität Mainz, Mainz, Germany; Department of Physics & Astronomy, University of Sussex, Sussex House, Falmer, Brighton, BN1 9RH, United Kingdom; Science and Technology Policy Fellow at the American Association for the Advancement of Science; Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan; University of Manchester, School of Physics and Astronomy, Schuster Building, Oxford Rd, Manchester M13 9PL, United Kingdom; Dipartimento di Fisica “Ettore Pancini”, Università di Napoli Federico II, Complesso Universitario di Monte S. Angelo, I-80126, Napoli, Italy; Institute of Particle and Nuclear Studies, KEK, Oho 1-1, Tsukuba, Ibaraki 305-0801, Japan; Astrocent, Nicolaus Copernicus Astronomical Center Polish Academy of Sciences, ul. Rektorska 4, 00-614, Warsaw, Poland; National Centre for Nuclear Research, Pasteura 7, Warsaw, 02-093, Poland; Charles University, Faculty of Mathematics and Physics, Prague, Czech Republic; ETH Zurich, Institute for Particle Physics and Astrophysics, CH-8093 Zurich, Switzerland
- 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, PO Box 351560, Seattle, WA 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
- Tomohiro Inada
- Department of Physics, Tsinghua University, Beijing, China
- Sune Jakobsen
- CERN, CH-1211 Geneva 23, 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
- Hiroaki Kawahara
- Kyushu University, Nishi-ku, 819-0395 Fukuoka, Japan
- Alex Keyken
- Royal Holloway, University of London, Egham, TW20 0EX, United Kingdom
- Felix Kling
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
- Daniela Köck
- University of Oregon, Eugene, OR 97403, USA
- Umut Kose
- ETH Zurich, Institute for Particle Physics and Astrophysics, CH-8093 Zurich, Switzerland
- Rafaella Kotitsa
- CERN, CH-1211 Geneva 23, Switzerland
- Susanne Kuehn
- CERN, CH-1211 Geneva 23, 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, PO Box 351560, Seattle, WA 98195-1460, USA
- Jinfeng Liu
- Department of Physics, Tsinghua University, Beijing, China
- Jack MacDonald
- Institut für Physik, Universität Mainz, Mainz, Germany
- 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
- Josh McFayden
- Department of Physics & Astronomy, University of Sussex, Sussex House, Falmer, Brighton, BN1 9RH, United Kingdom
- Sam Meehan
- CERN, CH-1211 Geneva 23, Switzerland; Institut für Physik, Universität Mainz, Mainz, Germany
- 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
- Mitsuhiro Nakamura
- Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
- Toshiyuki Nakano
- Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
- Friedemann Neuhaus
- Institut für Physik, Universität Mainz, Mainz, Germany
- Laurie Nevay
- CERN, CH-1211 Geneva 23, Switzerland; Royal Holloway, University of London, Egham, TW20 0EX, United Kingdom
- Ken Ohashi
- Albert Einstein Center for Fundamental Physics, Laboratory for High Energy Physics, University of Bern, Sidlerstrasse 5, CH-3012 Bern, Switzerland
- Hidetoshi Otono
- Kyushu University, Nishi-ku, 819-0395 Fukuoka, Japan
- 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
- Brian Petersen
- CERN, CH-1211 Geneva 23, Switzerland
- Markus Prim
- Universität Bonn, Regina-Pacis-Weg 3, D-53113 Bonn, Germany
- Michaela Queitsch-Maitland
- University of Manchester, School of Physics and Astronomy, Schuster Building, Oxford Rd, Manchester M13 9PL, United Kingdom
- Hiroki Rokujo
- Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
- Elisa Ruiz-Choliz
- Institut für Physik, Universität Mainz, Mainz, Germany
- Jorge Sabater-Iglesias
- Département de Physique Nucléaire et Corpusculaire, University of Geneva, CH-1211, Geneva 4, Switzerland
- Jakob Salfeld-Nebgen
- CERN, CH-1211 Geneva 23, 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
- Kristof Schmieden
- Institut für Physik, Universität Mainz, Mainz, Germany
- Matthias Schott
- Institut für Physik, Universität Mainz, Mainz, Germany
- 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, CA 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
- Eric Torrence
- University of Oregon, Eugene, OR 97403, USA
- Sebastian Trojanowski
- Astrocent, Nicolaus Copernicus Astronomical Center Polish Academy of Sciences, ul. Rektorska 4, 00-614, Warsaw, Poland; National Centre for Nuclear Research, Pasteura 7, Warsaw, 02-093, Poland
- Svetlana Vasina
- Affiliated with an international laboratory covered by a cooperation agreement with CERN
- Benedikt Vormwald
- CERN, CH-1211 Geneva 23, Switzerland
- Di Wang
- Department of Physics, Tsinghua University, Beijing, China
- Eli Welch
- Department of Physics and Astronomy, University of California, Irvine, CA 92697-4575, USA
- Samuel Zahorec
- CERN, CH-1211 Geneva 23, Switzerland; Charles University, Faculty of Mathematics and Physics, Prague, Czech Republic
- Stefano Zambito
- Département de Physique Nucléaire et Corpusculaire, University of Geneva, CH-1211, Geneva 4, Switzerland
- Journal volume & issue
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Vol. 848
p. 138378
Abstract
The FASER experiment at the LHC is designed to search for light, weakly-interacting particles produced in proton-proton collisions at the ATLAS interaction point that travel in the far-forward direction. The first results from a search for dark photons decaying to an electron-positron pair, using a dataset corresponding to an integrated luminosity of 27.0 fb−1 collected at centre-of-mass energy s=13.6 TeV in 2022 in LHC Run 3, are presented. No events are seen in an almost background-free analysis, yielding world-leading constraints on dark photons with couplings ϵ∼2×10−5−1×10−4 and masses ∼17 MeV−70 MeV. The analysis is also used to probe the parameter space of a massive gauge boson from a U(1)B−L model, with couplings gB−L∼5×10−6−2×10−5 and masses ∼15 MeV−40 MeV excluded for the first time.
