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Scientific article
Open access
English

Model-independent search for the presence of new physics in events including H\rightarrow\gamma\gamma with \sqrt{s} = 13 TeV pp data recorded by the ATLAS detector at the LHC

ContributorsATLAS Collaboration
Published inThe journal of high energy physics, vol. 2023, no. 7, 176
Publication date2023
First online date2023-07-24
Abstract

A model-independent search for new physics leading to final states containing a Higgs boson, with a mass of 125.09 GeV, decaying to a pair of photons is performed with 139 fb − 1 of $$ \sqrt{s} $$ s = 13 TeV pp collision data recorded by the ATLAS detector at the Large Hadron Collider at CERN. This search examines 22 final states categorized by the objects that are produced in association with the Higgs boson. These objects include isolated electrons or muons, hadronically decaying τ -leptons, additional photons, missing transverse momentum, and hadronic jets, as well as jets that are tagged as containing a b -hadron. No significant excesses above Standard Model expectations are observed and limits on the production cross section at 95% confidence level are set. Detector efficiencies are reported for all 22 signal regions, which can be used to convert detector-level cross-section limits reported in this paper to particle-level cross-section constraints.

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Keywords
  • Hadron-Hadron Scattering
  • Higgs Physics
  • P p: colliding beams
  • Higgs particle: associated production
  • Higgs particle: radiative decay
  • Jet: hadronic
  • Jet: bottom
  • Bottom: particle identification
  • Detector: efficiency
  • Transverse momentum: missing-energy
  • P p: scattering
  • New physics: search for
  • CERN LHC Coll
  • ATLAS
  • Muon
  • Tau: hadronic decay
  • CERN Lab
  • Photon: pair production
  • Electron
  • Mass spectrum: two-photon
  • Channel cross section: upper limit
  • Data analysis method
  • Experimental results
  • 13000 GeV-cms
Citation (ISO format)
ATLAS Collaboration. Model-independent search for the presence of new physics in events including <i>H\rightarrow\gamma\gamma </i>with <i>\sqrt{s} </i>= 13 TeV pp data recorded by the ATLAS detector at the LHC. In: The journal of high energy physics, 2023, vol. 2023, n° 7, p. 176. doi: 10.1007/jhep07(2023)176
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ISSN of the journal1029-8479
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