Speaker
Description
The Standard Model (SM) of particle physics, while highly successful, leaves several key phenomena unexplained, motivating the search for physics beyond the SM (BSM). One promising extension is the Leptophobic U(1) model, which avoids collider search constraints and introduces right-handed neutrinos (RHNs). These RHNs can participate in neutrino mass generation via seesaw mechanisms, leading to mixing between heavy RHNs and light SM neutrinos. This mixing allows RHNs to decay into Standard Model (SM) particles. For RHNs with masses around a few GeV, small mixing can result in displaced decays, producing long-lived particles (LLPs) with significantly displaced vertices. In this talk, I will present our analysis of the Leptophobic U(1) model and its implications for LLP searches at current experiments like CMS and LHCb, as well as future detectors optimized for displaced vertex searches, including MATHUSLA, CODEXb, and FASER.
| Field of contribution | Phenomenology |
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