Conveners
Higgs II
- Samuel Homiller (YITP, Stony Brook)
The structures of Yukawa matrices have been a long-standing mystery of the Standard Model. One possible solution is assuming an abelian $U(1)_F$ flavor symmetry and introducing a small parameter $\epsilon$ through the Froggatt-Nielson mechanism. In this talk, I will show how to realize the Froggatt-Nielson mechanism within the framework of composite Higgs models. In this type of model, both...
The CP structure of the Higgs boson in its coupling to the particles of the Standard Model is amongst the most important Higgs boson properties which have not yet been constrained with high precision. In this study, all relevant inclusive and differential Higgs boson measurements from the ATLAS and CMS experiments are used to constrain the CP-nature of the top-Yukawa interaction. The model...
Probing the charm Yukawa coupling is very important to confirm Higgs-fermion interactions and search for deviations from the Standard Model (SM), yet extremely challenging due to enormous QCD background. In this study, we examine the sensitivity of probing Higgs-charm coupling at Large Hadron Collider (LHC) via vector boson fusion with a photon radiation. This additional photon provides an...
Testing the Yukawa couplings of the Higgs boson to quarks and leptons is important to understand the origin of fermion masses. The talk presents cross section measurements in Higgs boson decays to two bottom quarks or two tau leptons, searches for Higgs boson decays to two charm quarks or two muons, as well as indirect constraints of the charm-Yukawa coupling. The production of Higgs bosons in...
In this talk, top quark pair production is proposed as a probe of the CP structure of the top quark Yukawa interaction. Since the top-Higgs coupling enters through Higgs boson loops, a next-to-leading-order calculation is performed in the Standard Model Effective Field Theory in order to include arbitrary CP mixtures. This approach of analyzing Higgs boson degrees of freedom in loops benefits...
Since the discovery of the Higgs boson in 2012, one of the main efforts of the LHC experiments has been to characterize the new particle precisely. This includes measurement of mass, spin properties and couplings as well as differential properties. This talk will emphasize most of the important Higgs analyses decaying to various final states carried by the CMS experiment in recent times.
