Supersymmetric Effective Theory : a tool for colliders Higgs searches

par Guillaume Drieu la Rochelle (LAPTH)

lundi 18 oct. 2010, 11:00 → 11:30 Europe/Paris

Auditorium M. Vivargent (LAPTH)

I present here the formalism of an Effective Field Theory (EFT) based on the MSSM spectrum and lagrangian and extended by new operators of higher dimension in the Higgs sector. This framework entails for instance theories such as NMSSM with an heavy scalar and MSSM with extra U(1), and in a general point of view any supersymmetric theory with extra (that is to say non-MSSM) particles much heavier than MSSM particles. I will briefly present the method used to derive the observables of the Higgs sector, namely the Higgs masses, their production cross-sections and their decays. I will then discuss the various constraints that restrict this effective parameter space, and will eventually focus on the discrimination between Standard Model Higgs and Supersymmetric Higgs, based on observation on the Higgs sector at colliders.

Slides DrieuLaRochelle.pptx