Speaker
Description
Abstract: The undetected dark matter search is performed in the final state of Higgs decaying to a pair of tau leptons with large missing transverse momentum (MET) by using the proton-proton collision data of CMS detector at CERN LHC, at the center of mass, √S=13 TeV. The benchmark models for this particular search are performed with two simplified models of DM + H productions. The first one is Z´–two–Higgs-Doublet(Z´-2HDM) model, where Z´ will decay into a standard model like Higgs boson and an intermediate heavy pseudo-scalar particle (A), which further decays into a Dirac fermionic dark matter particle. In this model, the mass of pseudo-scalar, A = 300 GeV and DM mass = 100 GeV, the Z' masses from 550 GeV to 1265 GeV are excluded. The second model, is Z´ baryonic model, where a new massive vector mediator Z´ emits a Higgs boson, which further decays to a pair of Dirac fermionic DM particles. In this model, the dark matter mass up to 1 GeV and Z' masses up to 615 GeV are excluded.
