2026/07/28 by FASER Collaboration
Physics and Astronomy · #hep-ex #hep-ph
9 pages, 9 figures
arxiv created 2026/07/28 · arxiv updated 2026/07/30
We present the first LHC search for quirks, particles with Standard Model and a QCD-like infracolor (IC) interactions. The analysis uses data collected in 2022--2024 by FASER, with a 186~fb-1 integrated luminosity of proton-proton collisions at a center-of-mass energy √(s)=13.6 TeV. Scintillator charge and timing information are used to search for slow pairs of quirks with no QCD color and electric charge ± 1. No events are seen in this nearly background-free search, resulting in the first exclusion of quirks with masses above the weak scale for IC confinement scales in the broad range of 300 eV<Λ<100keV.