High Energy Physics Seminars

Light Singlino Dark Matter at the LHC

by Mr. Arnab Roy (DHEP, TIFR)

Thursday, May 21, 2020 from to (Asia/Kolkata)
Description
Light (~ few GeV) dark matter (DM) particle is still very much allowed even in the presence of stringent constraints on DM particle masses from direct detection experiments. In the Next-to Minimal Supersymmetric Standard Model (NMSSM), the lightest neutralino can be a very promising candidate for dark matter (DM) with mass of few GeV and yet allowed by the relevant constraints, if it is singlino-like. The DM annihilation takes place via singlet-like light Higgs bosons which are natural in this model and also required to satisfy the relic density and direct detection bounds for DM. These light Higgs bosons and the singlino-like DM candidate can be indirectly produced at the LHC through production of SM Higgs boson and its subsequent decays. In this talk, I will discuss how the allowed region of NMSSM parameter space can provide a very light singlino-lke DM solution, along with the presence of singlet-like light Higgs bosons. Further, I will talk about how this DM candidate and the light Higgs bosons
can be probed at the LHC.