Argonne National Laboratory

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BSM Models Face Higgs Data

HEP Theoretical Physics Seminar
Rick Gupta, IFAE Barcelona
December 11, 2013 2:00PM to 3:00PM
Building 362, Room F108
In this talk I will discuss how to probe Beyond Standard Model theories with Higgs coupling data. First, I will discuss how much Higgs couplings (including the Higgs self coupling) can deviate from their Standard Model values, in different BSM theories, if no other states are accessible at the LHC. We will argue that this is the Higgs coupling measurement precision that can serve as a target for experimentalists.

Then, I will focus on supersymmetric theories (MSSM, NMSSM, D-term extensions) and show that there is a connection between the mechanism to raise the Higgs mass to 125 GeV and the pattern of Higgs coupling deviations. In the second part of my talk, I will discuss an effective operator approach to parametrize deviations beyond Standard Model. We will consider the RG running and mixing of the operator coefficients and use these to derive constraints on the effective operator couplings at the BSM matching scale.