The quirk signal at FASER and FASER 2

Abstract

We study FASER and FASER 2 sensitivities to the quirk signal by simulating the motions of quirks that are travelling through several infrastructures from the ATLAS interaction point to the FASER (2) detector. The ionization energy losses for a charged quirk travelling in different materials are treated carefully. We calculate the expected numbers of quirk events that can reach the FASER (2) detector for an integrated luminosity of 150 (3000) fb${}^{-1}$. Scenarios for quirks with four different quantum numbers, and different masses and confinement scales are studied.

arXiv comment22 pages, 9 figures, version accepted for publication in JHEP

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