Search for Higgs boson production in association with a high-energy photon via vector-boson fusion with decay into bottom quark pairs at $\sqrt{s}$=13 TeV with the ATLAS detector

TL;DR

This paper reports a search for Higgs boson production with a high-energy photon via vector-boson fusion, focusing on decay into bottom quark pairs, using 13 TeV data from the ATLAS detector, with results consistent with the Standard Model.

Contribution

First search targeting Higgs production with a photon via vector-boson fusion in the bottom quark decay channel at 13 TeV with ATLAS.

Findings

Measured signal yield is 1.3 ± 1.0 times the SM prediction.

Observed significance is 1.3 standard deviations.

Analysis used 132 fb$^{-1}$ of data.

Abstract

A search is presented for the production of the Standard Model Higgs boson in association with a high-energy photon. With a focus on the vector-boson fusion process and the dominant Higgs boson decay into $b$-quark pairs, the search benefits from a large reduction of multijet background compared to more inclusive searches. Results are reported from the analysis of 132 fb$^{-1}$ of $pp$ collision data at $\sqrt{s}$=13 TeV collected with the ATLAS detector at the LHC. The measured Higgs boson signal yield in this final-state signature is $1.3 \pm 1.0$ times the Standard Model prediction. The observed significance of the Higgs boson signal above the background is 1.3 standard deviations, compared to an expected significance of 1.0 standard deviations.