Speaker: 
Dorota Sokolowska
Speaker affiliation: 
University of Warsaw
Date: 
Friday, April 4, 2014 - 14:15
Room: 
Seminar Room, 5001, Build 46
Title: 
Scalar extensions of the Standard Model: Dark Matter and LHC
Abstract: 
Multi-scalar extensions of the Standard Model can accommodate a viable Dark Matter candidate and modifications of the Higgs decay rates, particularly into two photons. One of the simplest choices for the extended scalar sector is the Inert Doublet Model, i.e. the Standard Model with an additional inert scalar doublet. In this talk I will discuss the the interplay between the LHC results on the decay of the SM-like Higgs boson to two photons and the properties of Dark Matter from Planck measurements. Constraints for the IDM obtained this way are stronger or comparable to the constraints provided by direct and indirect detection experiments for low, medium and high Dark Matter mass regions. I will also comment on further extensions of the scalar sector by additional singlets or doublets, which may modify the viable DM mass regions