SMuK 2023 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 4: Searches I

T 4.4: Vortrag

Montag, 20. März 2023, 17:15–17:30, HSZ/0403

Search for long-lived particles in the CMS muon system — Joerg Schindler, Lisa Benato, •Karim El Morabit, and Gregor Kasieczka — Universität Hamburg

Traditionally, searches for new physics at the LHC focused on already established objects, like photons, leptons, jets or missing energy. A different approach is to look for signatures in the detector which up until now were not considered. One example are long-lived particles, which can have a long lifetime leading to macroscopic flight distances ranging from a few micrometers up to several kilometers. In this talk, a search for long lived particles decaying in the CMS muon system is presented. The resulting signature is a large hadronic shower in the muon system with no inner detector activity, which can be observed with close to no background, but requires the development of new reconstruction and analysis tools. The status of the current searches for LLPs with decays in the muon system is shown, using data collected by the CMS detector in Run 2.