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Prospects and Opportunities with an upgraded FASER Neutrino Detector during the HL-LHC era: Input to the EPPSU

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arxiv 2503.19775 v1 pith:SSYXZW2H submitted 2025-03-25 hep-ex physics.ins-det

FASER Collaboration: Roshan Mammen Abraham , Xiaocong Ai , Saul Alonso-Monsalve , John Anders , Claire Antel , Akitaka Ariga , Tomoko Ariga , Jeremy Atkinson
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Florian U. Bernlochner Tobias Boeckh Jamie Boyd Lydia Brenner Angela Burger Franck Cadoux Roberto Cardella David W. Casper Charlotte Cavanagh Xin Chen Dhruv Chouhan Sebastiani Christiano Andrea Coccaro Stephane Débieux Monica D'Onofrio Ansh Desai Sergey Dmitrievsky Radu Dobre Sinead Eley Yannick Favre Jonathan L. Feng Carlo Alberto Fenoglio Didier Ferrere Max Fieg Wissal Filali Elena Firu Edward Galantay Ali Garabaglu Stephen Gibson Sergio Gonzalez-Sevilla Yuri Gornushkin Carl Gwilliam Daiki Hayakawa Michael Holzbock Shih-Chieh Hsu Zhen Hu Giuseppe Iacobucci Tomohiro Inada Luca Iodice Sune Jakobsen Hans Joos Enrique Kajomovitz Hiroaki Kawahara Alex Keyken Felix Kling Daniela Köck Pantelis Kontaxakis Umut Kose Rafaella Kotitsa Peter Krack Susanne Kuehn Thanushan Kugathasan Lorne Levinson Botao Li Jinfeng Liu Yi Liu Margaret S. Lutz Jack MacDonald Chiara Magliocca Toni Mäkelä Yasuhiro Maruya Lawson McCoy Josh McFayden Andrea Pizarro Medina Matteo Milanesio Théo Moretti Mitsuhiro Nakamura Toshiyuki Nakano Laurie Nevay Ken Ohashi Hidetoshi Otono Hao Pang Lorenzo Paolozzi Pawan Pawan Brian Petersen Titi Preda Markus Prim Michaela Queitsch-Maitland Juan Rojo Hiroki Rokujo André Rubbia Jorge Sabater-Iglesias Osamu Sato Paola Scampoli Kristof Schmieden Matthias Schott Anna Sfyrla Davide Sgalaberna Mansoora Shamim Savannah Shively Yosuke Takubo Noshin Tarannum Ondrej Theiner Simon Thor Eric Torrence Oscar Ivan Valdes Martinez Svetlana Vasina Benedikt Vormwald Yuxiao Wang Eli Welch Monika Wielers Benjamin James Wilson Jialin Wu Johannes Martin Wuthrich Yue Xu Samuel Zahorec Stefano Zambito Shunliang Zhang Xingyu Zhao
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classification hep-exphysics.ins-det
keywords neutrinophysicsdetectorfaserforwardduringeventflavor
verification ladder T0 review T1 audit T2 compute T3 formal
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The FASER experiment at CERN has opened a new window in collider neutrino physics by detecting TeV-energy neutrinos produced in the forward direction at the LHC. Building on this success, this document outlines the scientific case and design considerations for an upgraded FASER neutrino detector to operate during LHC Run 4 and beyond. The proposed detector will significantly enhance the neutrino physics program by increasing event statistics, improving flavor identification, and enabling precision measurements of neutrino interactions at the highest man-made energies. Key objectives include measuring neutrino cross sections, probing proton structure and forward QCD dynamics, testing lepton flavor universality, and searching for beyond-the-Standard Model physics. Several detector configurations are under study, including high-granularity scintillator-based tracking calorimeters, high-precision silicon tracking layers, and advanced emulsion-based detectors for exclusive event reconstruction. These upgrades will maximize the physics potential of the HL-LHC, contribute to astroparticle physics and QCD studies, and serve as a stepping stone toward future neutrino programs at the Forward Physics Facility.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Investigation of Low-Energy Particle Remnants in High-Energy Collisions at the LHC with a Skipper-CCD detector

    hep-ex 2025-08 conditional novelty 6.0 of 10

    The first skipper-CCD run at the LHC finds no significant beam-correlated low-energy ionization signal and sets 95% C.L. limits on millicharged particles.

  2. Latest neutrino results from the FASER experiment and their implications for forward hadron production

    hep-ex 2025-07 conditional novelty 6.0 of 10

    FASER's updated forward neutrino measurements are broadly consistent with current hadronic interaction models, with tensions in the 0.3-0.6 TeV range and above 1 TeV.

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