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The FASER detector

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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, FASERν, 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 has successfully started taking LHC collision data in 2022, and will run throughout LHC Run 3.
IOP Publishing
Henso Abreu Elham Amin Mansour Claire Antel Akitaka Ariga Tomoko Ariga Florian Bernlochner Tobias Boeckh Jamie Boyd Lydia Brenner Franck Cadoux David W. Casper Charlotte Cavanagh Xin Chen Andrea Coccaro Olivier Crespo-Lopez Stéphane Débieux Sergey Dmitrievsky Monica D'Onofrio Liam Dougherty Candan Dozen Abdallah Ezzat Yannick Favre Deion Fellers Jonathan L. Feng Didier Ferrere Edward Karl Galantay Jonathan Gall Enrico Gamberini Stephen Gibson Sergio Gonzalez-Sevilla Yuri Gornushkin Carl Gwilliam Daiki Hayakawa Shih-Chieh Hsu Zhen Hu Giuseppe Iacobucci Tomohiro Inada Sune Jakobsen Eliott Johnson Enrique Kajomovitz Hiroaki Kawahara Felix Kling Umut Kose Rafaella Kotitsa Jesse Krusse Susanne Kuehn Helena Lefebvre Lorne Levinson Ke Li Jinfeng Liu Chiara Magliocca Fulvio Martinelli Josh McFayden Sam Meehan Matteo Milanesio Manato Miura Dimitar Mladenov Théo Moretti Magdalena Munker Mitsuhiro Nakamura Toshiyuki Nakano Marzio Nessi Friedemann Neuhaus Laurie Nevay John Osborne Hidetoshi Otono Carlo Pandini Hao Pang Lorenzo Paolozzi Brian Petersen Francesco Pietropaolo Markus Prim Michaela Queitsch-Maitland Filippo Resnati Chiara Rizzi Hiroki Rokujo Elisa Ruiz-Choliz Jakob Salfeld-Nebgen Francisco Sanchez Galan Osamu Sato Paola Scampoli Kristof Schmieden Matthias Schott Anna Sfyrla Savannah Shively Roland Sipos John Spencer Yosuke Takubo Noshin Tarannum Ondrej Theiner Pierre Thonet Eric Torrence Serhan Tufanli Svetlana Vasina Camille Vendeuvre Benedikt Vormwald Di Wang Stefano Zambito Gang Zhang
Title: The FASER detector
Description:
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, FASERν, 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 has successfully started taking LHC collision data in 2022, and will run throughout LHC Run 3.

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