Search for Higgs bosons produced via vector-boson fusion and decaying into bottom quark pairs in $\sqrt{s} = 13$ $\mathrm{TeV}$ $pp$ collisions with the ATLAS detector

TL;DR

This paper reports a search for the Higgs boson decaying into bottom quark pairs via vector-boson fusion at 13 TeV, using ATLAS data, finding a signal strength somewhat above Standard Model expectations.

Contribution

It presents the first analysis of Higgs to bottom quark pairs via vector-boson fusion in multiple channels at 13 TeV with ATLAS, including combined signal strength measurement.

Findings

Measured signal strength for inclusive production: 2.5^{+1.4}_{-1.3}

Measured signal strength for VBF production: 3.0^{+1.7}_{-1.6}

Analysis used 30.6 fb$^{-1}$ of data at 13 TeV

Abstract

A search for the $b\bar b$ decay of the Standard Model Higgs boson produced through vector-boson fusion is presented. Three mutually exclusive channels are considered: two all-hadronic channels and a photon-associated channel. Results are reported from the analysis of up to 30.6 fb$^{-1}$ of $pp$ data at $\sqrt{s} = 13$ $\mathrm{TeV}$ collected with the ATLAS detector at the LHC. The measured signal strength relative to the Standard Model prediction from the combined analysis is $2.5^{+1.4}_{-1.3}$ for inclusive Higgs boson production and $3.0^{+1.7}_{-1.6}$ for vector-boson fusion production only.