Year: 2024
Type: conference-paper
Abstract: FASER is a small LHC experiment designed to search for light, weakly-interacting, long-lived particles produced in proton-proton collisions at the ATLAS interaction point. The recent BSM physics results from 2023 and 2024 are presented. The search for dark photons uses 27.0 fb$^{-1}$ of data collected by the FASER experiment in 2022. The search sets world-leading exclusion limits for dark photon masses 17 MeV $< m_{A'} <$ 70 MeV and couplings 2 $\times$ 10$^{-5} < \epsilon <$ 1 $\times$ 10$^{-4}$. The results of this analysis are also reinterpreted for the $B-L$ gauge boson model. The search for axion-like particles (ALPs) uses 57.7 fb$^{-1}$ of 2022 and 2023 data. This search provides world-leading exclusion limits for ALP masses 100 $< m_{a} <$ 250 MeV and couplings $3 \times 10^{-5}$ GeV$^{-1}< g_{aWW} < 5 \times 10^{-4}$ GeV$^{-1}$.
DOI: 10.22323/1.478.0039
Author: Charlotte Cavanagh
Institution: University of Liverpool
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Funders: National Science Foundation, Deutsche Forschungsgemeinschaft, Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, National Natural Science Foundation of China, Bundesministerium für Bildung und Forschung, Tsinghua University, Japan Society for the Promotion of Science, Institute of Materials and Systems for Sustainability, Nagoya University, H2020 European Research Council
Awards: G108021307, G2921340262, Study of lepton-quark interactions with the LHC neutrinos, G3808413487, Collaborative Research: FASER and FASERnu at the Large Hadron Collider, G432818845, Study of Neutrinos at the High Energy Frontier, Study of high-energy neutrinos at the LHC, G5152588495, Collaborative Research: FASER and FASERnu at the Large Hadron Collider, Studying Neutrinos at the High Energy Frontier, Verbundprojekt 05H2018 - R&D COMPUTING (Pilotmaßnahme ErUM-Data) - Innovative Digitale Technologien für die Erforschung von Universum und Materie, EXC 2121: Quantum Universe, Collaborative Research: FASER and FASERnu at the Large Hadron Collider
OpenAlex ID: W4405650754