Effective Lagrangians for Higgs Physics

Abstract

Presently LHC has observed a state which is compatible with the Standard Model Higgs Scalar responsible for electroweak symmetry breaking (EWSM) . On the other hand no direct signature of new physics staes has been observed.

This allows to parametrize the possible effects of NP in the electroweak symmetry breaking sector in terms of an effective lagrangian containing higher dimension operators. Recently we have performed an analysis of the existing data in order to constraint the coefficients of these operators. The proyect will review this subject and will evaluate the maximum allowed deviations from the SM predictions in the Higgs related signatures at the future high precision runs of the LHC.

Advisors
Concha Gonzalez Garcia
References

T.~Corbett, O.~J.~P.~Eboli, J.~Gonzalez-Fraile and M.~C.~Gonzalez-Garcia, "Robust Determination of the Higgs Couplings: Power to the Data", Phys.\ Rev.\ D {\bf 87}, 015022 (2013). [arXiv:1211.4580 [hep-ph]].

W.~Buchmuller and D.~Wyler, "Effective Lagrangian Analysis of New Interactions and Flavor Conservation", Nucl.\ Phys.\ B {\bf 268}, 621 (1986)