Extraction of neutrino Yukawa parameters from displaced vertices of sneutrinos
arXiv:2012.14034 · doi:10.1007/JHEP06(2021)027
Abstract
We study displaced signatures of sneutrino pairs potentially emerging at the Large Hadron Collider (LHC) in a Next-to-Minimal Supersymmetric Standard Model supplemented with right-handed neutrinos triggering a Type-I seesaw mechanism. We show how such signatures can be established through a heavy Higgs portal in the presence of both leptonic and hadronic decays of the sneutrinos. We finally illustrate how the Yukawa parameters of the latter can be extracted from fitting kinematical quantities pertaining to the corresponding two displaced vertices, thereby characterising the dynamics of the underlying mechanism of neutrino mass generation. We show our numerical results for the case of both the current and High-Luminosity LHC.
21 pages, 7 figures. Revised version, matches the version accepted to JHEP
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Cited by in corpus (3)
- Long-Lived Light Mediators from Higgs boson Decay at HL-LHC, FCC-hh and a Proposal of Dedicated LLP Detectors for FCC-hh
- Dedicated Triggers for Displaced Jets using Timing Information from Electromagnetic Calorimeter at HL-LHC
- Measuring neutrino dynamics in NMSSM with a right-handed sneutrino LSP at the ILC