Made available in DSpace on 2022-05-01T12:40:52Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-12-24; A search for long-lived particles (LLPs) produced in decays of standard model (SM) Higgs bosons is presented. The data sample consists of 137 fb-1 of proton-proton collisions at s=13 TeV, recorded at the LHC in 2016-2018. A novel technique is employed to reconstruct decays of LLPs in the end cap muon de...