Theory Seminar

Thursday, November 10, 2016

Speaker: Harri Waltari

Time: 3:30PM -- 4:30PM

Location: HP4351

Title: Collider signatures of sneutrino dark matter in left-right symmetric supersymmetry


A right-handed sneutrino is a viable dark matter candidate in supersymmetry in addition to the more conventional neutralino option. Right-handed sneutrinos are a natural part of left-right symmetric supersymmetric models, where the gauge sector is extended with right-handed weak interactions. We studied the sneutrino dark matter option in left-right supersymmetry and its signatures at the LHC. We find that we may satisfy the constraints from relic density, low-energy observables and direct SUSY searches. The easiest way to produce the sneutrino would be via the right-handed gauge sector, where the decays of W_R to sleptons lead to multilepton final states. We compare some benchmarks to the case of a neutralino LSP. We may get a detectable signal with high luminosities even with the right-handed W-boson being around 3.5 TeV.