Measurements and Searches of Higgs boson decays to two fermions

TL;DR

This paper reviews recent measurements and searches of Higgs boson decays to fermions, focusing on third- and second-generation fermions using LHC Run 2 data from the ATLAS experiment.

Contribution

It provides updated experimental results on Higgs decays to various fermions, including new measurements of $H\rightarrow b\bar{b}$, $H\rightarrow c\bar{c}$, and $H\rightarrow \mu\mu$.

Findings

Observation of Higgs decay to $b\bar{b}$ with increased precision.

Searches for Higgs decays to $c\bar{c}$ and $\mu\mu$ with new limits.

Confirmation of the Higgs-fermion interaction in multiple channels.

Abstract

The interaction of the Higgs boson to fermion is most fragile part in the Standard model. The Higgs decay to ditau ($H\rightarrow \tau\tau$) was observed and established in the LHC Run 1 data. This report presents recent measurements and searches of Higgs boson decay to two fermions. In particular this report focuses on results of the Higgs b oson decays to third-generation ($H\rightarrow b\bar{b}$) and second-generation ($H\rightarrow c\bar{c}$, $H\rightarrow \mu\mu$) fermions using the LHC Run 2 data collected by the ATLAS experiment at the LHC.