CMS-PAS-HIG-21-020

CMS-PAS-HIG-21-020
Search for boosted Higgs bosons produced via vector boson fusion in the H $\rightarrow b\bar{b}$ decay mode using LHC proton-proton collision data at $\sqrt{s} =$ 13 TeV
CMS Collaboration
2 August 2023

Abstract: A search is conducted for Higgs bosons produced with high transverse momentum ( $p_{\mathrm{T}} >$ 450 GeV) via vector boson fusion at the LHC proton-proton collider operating at center of mass energy $\sqrt{s}=$ 13 TeV. The result is based on the 138 fb $^{-1}$ data set collected by the CMS detector in 2016, 2017, and 2018. The decay of a high- $p_{\mathrm{T}}$ Higgs boson to a boosted bottom quark-antiquark pair is isolated by selecting large-radius jets and exploiting jet substructure and heavy flavour taggers based on advanced machine learning techniques. Independent regions targeting vector boson fusion and gluon-gluon fusion are defined based on the topology of forward quark jets. The signal strengths for both processes are extracted simultaneously by performing a maximum likelihood fit to data in the large-radius jet mass distribution. The observed signal strengths are 2.1 $^{+1.9}_{-1.7}$ and 5.0 $^{+2.1}_{-1.8}$ for gluon-gluon fusion and vector boson fusion, respectively.
Links: CDS record (PDF) ; Physics Briefing ; CADI line (restricted) ; These preliminary results are superseded in this paper, Submitted to JHEP. The superseded preliminary plots can be found here.

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