The FASER Detector

FASER Collaboration: Henso Abreu (1); Elham Amin Mansour (2); Claire; Antel (2); Akitaka Ariga (3; 4); Tomoko Ariga (5); Florian Bernlochner; (6); Tobias Boeckh (6); Jamie Boyd (7); Lydia Brenner (8); Franck Cadoux (2),; David W. Casper (9); Charlotte Cavanagh (10); Xin Chen (11); Andrea Coccaro; (12); Olivier Crespo-Lopez (7); Stephane Debieux (2); Monica D'Onofrio (10),; Liam Dougherty (7); Candan Dozen (13); Abdallah Ezzat (14); Yannick Favre; (2); Deion Fellers (15); Jonathan L. Feng (9); Didier Ferrere (2); Edward; Karl Galantay (2); Jonathan Gall (16); Enrico Gamberini (7); Stephen Gibson; (17); Sergio Gonzalez-Sevilla (2); Carl Gwilliam (10); Daiki Hayakawa (4),; Shih-Chieh Hsu (18); Zhen Hu (11); Giuseppe Iacobucci (2); Tomohiro Inada; (11); Sune Jakobsen (7); Eliott Johnson (2); Enrique Kajomovitz (1); Hiroaki; Kawahara (5); Felix Kling (19); Umut Kose (7); Rafaella Kotitsa (7); Jesse; Krusse (20,21); Susanne Kuehn (7); Helena Lefebvre (17); Lorne Levinson (22),; Ke Li (18); Jinfeng Liu (11); Chiara Magliocca (2); Fulvio Martinelli (2),; Josh McFayden (23); Sam Meehan (7; 24); Matteo Milanesio (2); Manato Miura; (4); Dimitar Mladenov (7); Theo Moretti (2); Magdalena Munker (2); Mitsuhiro; Nakamura (25); Toshiyuki Nakano (25); Marzio Nessi (7; 2); Friedemann; Neuhaus (26); Laurie Nevay (17); John Osborne (7); Hidetoshi Otono (5); Carlo; Pandini (2); Hao Pang (11); Lorenzo Paolozzi (7,2); Brian Petersen (7),; Francesco Pietropaolo (7); Markus Prim (6); Michaela Queitsch-Maitland (27),; Filippo Resnati (7); Chiara Rizzi (2); Hiroki Rokujo (25); Elisa Ruiz-Choliz; (26); Jakob Salfeld-Nebgen (7); Francisco Sanchez Galan (7); Osamu Sato (25),; Paola Scampoli (3; 28); Kristof Schmieden (26); Matthias Schott (26); Anna; Sfyrla (2); Savannah Shively (9); Roland Sipos (7); John Spencer (18); Yosuke; Takubo (29); Noshin Tarannum (2); Ondrej Theiner (2); Pierre Thonet (7); Eric; Torrence (15); Serhan Tufanli (7); Camille Vendeuvre (7); Benedikt Vormwald; (7); Di Wang (11); Stefano Zambito (2); Gang Zhang (30) ((1) Department of; Physics; Astronomy; Technion---Israel Institute of Technology; Israel; (2); Departement de Physique Nucleaire et Corpusculaire; University of Geneva,; Switzerland; (3) Albert Einstein Center for Fundamental Physics; Laboratory; for High Energy Physics; University of Bern; Switzerland; (4) Department of; Physics; Chiba University; Japan; (5) Kyushu University; Japan; (6); Universitat Bonn; Germany; (7) CERN; Switzerland; (8) Nikhef National; institute for subatomic physics; Amsterdam; Netherlands; (9) Department of; Physics; Astronomy; University of California; Irvine; United States of; America; (10) University of Liverpool; Liverpool; United Kingdom; (11); Department of Physics; Tsinghua University; Beijing; China; (13) Institut de; Physique des 2 Infinis de Lyon (IP2I); Villeurbanne; France; (14) Faculte de; Physique et Ingenierie; University of Strasbourg; Strasbourg; France; (15); University of Oregon; Eugene; United States of America; (16) Turner and; Townsend; Leeds; United Kingdom; (17) Royal Holloway; University of London,; United Kingdom; (18) Department of Physics; University of Washington,; Seattle; United States of America; (19) Deutsches Elektronen-Synchrotron; DESY; Hamburg; Germany; (20) National Institute of Standards; Technology,; Boulder; United States of America; (21) University of Colorado; Boulder,; United States of America; (22) Department of Particle Physics and; Astrophysics; Weizmann Institute of Science; Israel; (23) Department of; Physics; Astronomy; University of Sussex; Brighton; United Kingdom; (24); 2021-2022 AAAS Science; Technology Policy Fellow; (25) Nagoya University,; Nagoya; Japan; (26) Institut fur Physik; Universit\"at Mainz; Mainz; Germany,; (27) University of Manchester; School of Physics; Astronomy; Oxford Rd,; Manchester; United Kingdom; (28) Dipartimento di Fisica "Ettore Pancini",; Universita di Napoli Federico II; Complesso Universitario di Monte S. Angelo,; Napoli; Italy; (29) Institute of Particle; Nuclear Studies; KEK; Tsukuba,; Japan; (30) College of Electronic Engineering; National University of Defense; Technology; Hefei; China)

arXiv:2207.11427·physics.ins-det·June 4, 2024

The FASER Detector

FASER Collaboration: Henso Abreu (1), Elham Amin Mansour (2), Claire, Antel (2), Akitaka Ariga (3, 4), Tomoko Ariga (5), Florian Bernlochner, (6), Tobias Boeckh (6), Jamie Boyd (7), Lydia Brenner (8), Franck Cadoux (2),, David W. Casper (9), Charlotte Cavanagh (10)

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TL;DR

FASER is a new experiment at CERN designed to detect light, weakly-interacting particles and neutrinos produced in LHC collisions, with detailed descriptions of its components, installation, and initial commissioning.

Contribution

This paper provides the first detailed description of the FASER detector's design, installation, and commissioning procedures at CERN.

Findings

01

Successful installation and commissioning of FASER components

02

Detection of cosmic rays during commissioning

03

Preparation for LHC Run 3 data collection

Abstract

FASER, the ForwArd Search ExpeRiment, is an experiment dedicated to searching for light, extremely weakly-interacting particles at CERN's Large Hadron Collider (LHC). Such particles may be produced in the very forward direction of the LHC's high-energy collisions and then decay to visible particles inside the FASER detector, which is placed 480 m downstream of the ATLAS interaction point, aligned with the beam collisions axis. FASER also includes a sub-detector, FASER $ν$ , designed to detect neutrinos produced in the LHC collisions and to study their properties. In this paper, each component of the FASER detector is described in detail, as well as the installation of the experiment system and its commissioning using cosmic-rays collected in September 2021 and during the LHC pilot beam test carried out in October 2021. FASER will start taking LHC collision data in 2022, and will run…

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