2025/03/28 by Wei Liu, Zixiang Chen, Liu, Wei +1 · 2 citations
Physics and Astronomy · Computer Science · #Particle physics theoretical and experimental studies #Neutrino Physics Research #Computational Physics and Python Applications
paper · pdf · doi:10.48550/arxiv.2503.22112
We study the potential collider discovery for the right-handed neutrinos (RHNs) in the minimal left-right symmetric model (LRSM). In this model, the RHNs can be either produced from the right-handed gauge boson WR^±, or the scalar triplet Δ decays. The RHNs can subsequently decay via the heavy WR^±, making them potentially long-lived. In looking for such long-lived RHNs, a search for displaced shower at CMS muon system is reinterpreted for either the processes, pp → WR^± → ℓ^± N or pp → Δ→ N N. From the former process, we exclude MWR \lesssim 3.6 TeV using current CMS data, or \lesssim 8.0 TeV at the future HL-LHC. For the pp → Δ→ N N process, HL-LHC is able to probe much larger parameter space as long as the proper decay length of the RHNs, 0.01 m \lesssim L0 \lesssim 1 m. This implies that the displaced shower searches are able to explore the parameter space of the LRSM which have not been excluded yet.