Search for long-lived particles decaying to displaced vertices with leptons

  • Starts: 3:30 pm on Thursday, December 8, 2022
  • Ends: 4:30 pm on Thursday, December 8, 2022
Long-lived particles arise in a wide variety of beyond-the-standard-model scenarios due to the presence of small couplings or compressed mass spectra. Due to their long lifetimes they may decay away from the interaction point and appear in the detectors as atypical topologies. Since analysis techniques are often optimized to target prompt particles, long-lived particles are challenging to detect and analise but, on the other hand, their non-conventionality may be exploited to reduce background and gain sensitivity. One of the most typical signatures are long-lived particles decaying to leptons displaced from the interaction point. The recent results of an ongoing search for long-lived particles decaying into displaced vertices is presented. This search employs alternative lepton reconstructions to recover as much efficiency as possible for displaced objects. Backgrounds are predicted from a purely data-driven method as the simulation may not reproduce well their behavior at high displacement. The results are interpreted in the context of BSM Higgs scenarios and RPV SUSY models.
Location:
PRB 595
Speaker
Celia Fernandez Madrazo
Institution
Cern
Host
Indara Suarez