Séminaires

Étude du couplage top-Higgs au LHC

par Thomas Strebler (LLR - Ecole Polytechnique)

Europe/Paris
Description

"After the observation of the Higgs boson and the measurement of its mass, all of its properties are now predicted within the Standard Model and can be studied in more details. Run 1 data unambiguously established the compatibility of the Higgs boson with respect to the SM electroweak symmetry breaking mechanism but the constraints on the constraints on the fermion mass generation mechanism were looser. In particular, the coupling of the Higgs boson with the top quark is of high theoretical interest, due to its implications on the naturalness issue or the vacuum stability, and is therefore worth to be studied in more details.

The large dataset collected in LHC Run 2 offers now the possibility to probe thoroughly the interaction between the Higgs boson and the top quark. The observation of the ttH production mode both by the ATLAS and CMS collaborations, thanks to sophisticated analysis techniques, is already a great achievement in that respect and opens the way for further developments. The latest ATLAS and CMS results focusing on the ttH production, as well as those related to other analyses sensitive to the top-Higgs coupling, will be presented, highlighting their specific challenges and future prospects."

 

 

 

Keywords: top, Higgs, Yukawa coupling, ATLAS, LHC