Search for the SM Higgs boson produced in association with top quarks at $\sqrt{s}$ = 13 TeV with the ATLAS detector at the LHC

TL;DR

This paper reviews searches for the Standard Model Higgs boson produced with top quarks at 13 TeV using the ATLAS detector, summarizing results across multiple decay channels and reporting a combined significance of 2.8 sigma.

Contribution

It provides a comprehensive summary of ${t\bar{t}H}$ searches at 13 TeV with ATLAS, including combined results across various decay channels.

Findings

Combined significance of 2.8 sigma for ${t\bar{t}H}$ production

Summarizes results from diphoton, multilepton, and $b\bar{b}$ channels

Uses up to 13.3 fb$^{-1}$ of data at 13 TeV

Abstract

A review of the searches for the SM Higgs boson produced in association with a pair of top quarks, ${t\bar{t}H}$, using up to 13.3 fb$^{-1}$ of $pp$ collisions at $\sqrt{s}$ = 13 TeV collected with the ATLAS detector at the LHC is presented. Searches in the diphoton, multilepton and $b\bar{b}$ decay channels are summarised. The combination of these searches yields a measured (expected) significance for the observation of the ${t\bar{t}H}$ production process of $2.8 \sigma$ ($1.8 \sigma$).