Search for resonances in events with photon and jet final states in proton-proton collisions at $sqrt{s}$= 13 TeV
Search for resonances in events with photon and jet final states in proton-proton collisions at $sqrt{s}$= 13 TeV
A search for resonances in events with the $\gamma$+jet final state has been performed using proton-proton collision data collected at $\sqrt{s}$= 13 TeV by the CMS experiment at the LHC. The total data analyzed correspond to an integrated luminosity of 138 fb$^{-1}$. Models of excited quarks and quantum black holes are considered. The invariant mass spectrum of the $\gamma$+jet system is examined for the presence of resonances over the standard model continuum background. The data exhibit no statistically significant deviations from the expected standard model background. Exclusion limits at 95% confidence level on the resonance mass and other parameters are set. Excited light-flavor quarks (excited bottom quarks) are excluded up to a mass of 6.0 (3.8) TeV. Quantum black hole production is excluded for masses up to 7.5 (5.2) TeV in the Arkani-Hamed-Dimopoulos-Dvali (Randall-Sundrum) model. These lower mass bounds are the most stringent to date among those obtained in the $\gamma$+jet final state.
hep-ex
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3
[Unknown type: UNSPECIFIED]
Abstract
A search for resonances in events with the $\gamma$+jet final state has been performed using proton-proton collision data collected at $\sqrt{s}$= 13 TeV by the CMS experiment at the LHC. The total data analyzed correspond to an integrated luminosity of 138 fb$^{-1}$. Models of excited quarks and quantum black holes are considered. The invariant mass spectrum of the $\gamma$+jet system is examined for the presence of resonances over the standard model continuum background. The data exhibit no statistically significant deviations from the expected standard model background. Exclusion limits at 95% confidence level on the resonance mass and other parameters are set. Excited light-flavor quarks (excited bottom quarks) are excluded up to a mass of 6.0 (3.8) TeV. Quantum black hole production is excluded for masses up to 7.5 (5.2) TeV in the Arkani-Hamed-Dimopoulos-Dvali (Randall-Sundrum) model. These lower mass bounds are the most stringent to date among those obtained in the $\gamma$+jet final state.
More information
Accepted/In Press date: 13 May 2023
Additional Information:
Submitted to the Journal of High Energy Physics. All figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/EXO-20-012 (CMS Public Pages)
Keywords:
hep-ex
Identifiers
Local EPrints ID: 478617
URI: http://eprints.soton.ac.uk/id/eprint/478617
PURE UUID: 4b9c7cf3-5bd4-4d70-aae4-158bbd0a7409
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Date deposited: 05 Jul 2023 17:35
Last modified: 17 Mar 2024 03:10
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Contributors
Corporate Author: The CMS Collaboration
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