Illuminating all-hadronic final states with a photon: Exotic decays of the Higgs boson to four bottom quarks in vector boson fusion plus gamma at hadron colliders

Roche, Stephen T.; Carlson, Benjamin T.; Hayes, Christopher R.; Hong, Tae Min

doi:10.1103/PhysRevD.109.115029

Title: Illuminating all-hadronic final states with a photon: Exotic decays of the Higgs boson to four bottom quarks in vector boson fusion plus gamma at hadron colliders

Journal Article · 24 June 2024 · Physical Review. D.

DOI: https://doi.org/10.1103/PhysRevD.109.115029 · OSTI ID:2473532

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We investigate the potential to detect Higgs boson decays to four bottom quarks through a pair of pseudoscalars, a final state that is predicted by many theories beyond the Standard Model. For the first time, the signal sensitivity is evaluated for the final state using the vector boson fusion (VBF) production with and without an associated photon, for the Higgs at $m_{H} = 125 GeV$ , at hadron colliders. The signal significance is $0.5 σ$ to $6 σ$ , depending on the pseudoscalar mass $m_{a}$ , when setting the Higgs decay branching ratio to unity, using an integrated luminosity of $150 {fb}^{- 1}$ at $\sqrt{s} = 13 TeV$ . This corresponds to an upper limit of 0.3, on the Higgs branching ratio to four bottom quarks, with a nonobservation of the decay. We also consider several variations of selection requirements—input variables for the VBF tagging and the kinematic variables for the photon—that could help guide the design of new triggers for the Run-3 period of the LHC and for the HL-LHC. Published by the American Physical Society 2024

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Sponsoring Organization:: USDOE

Grant/Contract Number:: SC0007859; SC0007914

OSTI ID:: 2473532

Journal Information:: Physical Review. D., Journal Name: Physical Review. D. Journal Issue: 11 Vol. 109; ISSN PRVDAQ; ISSN 2470-0010

Publisher:: American Physical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

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