Latest Studies of the SM Higgs Boson Couplings to Fermions at ATLAS

Abstract

This proceeding presents the latest studies on the Yukawa couplings of the Standard Model Higgs boson with 139 fb${}^{-1}$ data collected using the ATLAS detector at a center-of-mass energy of 13 TeV. A first direct probe of $CP$ violation in the top-quark Yukawa coupling using events where the Higgs boson is produced in association with top quarks ($t\bar{t}H$ and $tH$), and decays into two photons ($H\to \gamma \gamma$ ) is discussed. The latest results on the Higgs boson production in association with a $W$ or $Z$ boson ($VH$) in the $H\to b\bar{b}$ channel are depicted as well. Finally, the searches for Higgs boson decays into two muons ($H\to {\mu }^{+}{\mu }^{-}$) and two electrons ($H\to e^{+}{e}^{-}$) are presented.

arXiv comment5 pages, 7 figures, 23rd International Conference in Quantum Chromodynamics (QCD 20), 27 October-30 October 2020, Montpellier-France

References in corpus (4)

• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Combined measurements of Higgs boson production and decay using up to $80$ fb${}^{-1}$ of proton-proton collision data at $\sqrt{s}=$ 13 TeV collected with the ATLAS experiment
• ATLAS $b$-jet identification performance and efficiency measurement with $t\bar{t}$ events in $pp$ collisions at $\sqrt{s}=13$ TeV
• Observation of Higgs boson production in association with a top quark pair at the LHC with the ATLAS detector