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Search for Narrow Resonances in Proton-Proton Collisions at √s = 13 TeV

Search for Narrow Resonances in Proton-Proton Collisions at √s = 13 TeV
Search for Narrow Resonances in Proton-Proton Collisions at √s = 13 TeV
A search for heavy, narrow resonances decaying to a Higgs boson and a photon (Hγ) has been performed in proton-proton collision data at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 35.9 fb1 collected with the CMS detector at the LHC in 2016. Events containing a photon and a Lorentz-boosted hadronically decaying Higgs boson reconstructed as a single, large-radius jet are considered, and the γ + jet invariant mass spectrum is analyzed for the presence of narrow resonances. To increase the sensitivity of the search, events are categorized depending on whether or not the large-radius jet can be identified as a result of the merging of two jets originating from b quarks. Results in both categories are found to agree with the predictions of the standard model. Upper limits on the production rate of resonances are set as a function of their mass in the range of 720–3250 GeV, representing the most stringent constraints to date.
1079-7114
1-18
Sirunyan, A.M.
846a7137-803d-49de-aae7-d6b85519e829
Belyaev, A.
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3
et al.
The CMS Collaboration
Sirunyan, A.M.
846a7137-803d-49de-aae7-d6b85519e829
Belyaev, A.
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3

Sirunyan, A.M. , et al. and The CMS Collaboration (2019) Search for Narrow Resonances in Proton-Proton Collisions at √s = 13 TeV. Physical Review Letters, 122 (8), 1-18. (doi:10.1103/PhysRevLett.122.081804).

Record type: Article

Abstract

A search for heavy, narrow resonances decaying to a Higgs boson and a photon (Hγ) has been performed in proton-proton collision data at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 35.9 fb1 collected with the CMS detector at the LHC in 2016. Events containing a photon and a Lorentz-boosted hadronically decaying Higgs boson reconstructed as a single, large-radius jet are considered, and the γ + jet invariant mass spectrum is analyzed for the presence of narrow resonances. To increase the sensitivity of the search, events are categorized depending on whether or not the large-radius jet can be identified as a result of the merging of two jets originating from b quarks. Results in both categories are found to agree with the predictions of the standard model. Upper limits on the production rate of resonances are set as a function of their mass in the range of 720–3250 GeV, representing the most stringent constraints to date.

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e-pub ahead of print date: 1 March 2019

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Local EPrints ID: 429136
URI: http://eprints.soton.ac.uk/id/eprint/429136
ISSN: 1079-7114
PURE UUID: bfaaeffb-2c21-478d-813a-9b334daaddb0
ORCID for A. Belyaev: ORCID iD orcid.org/0000-0002-1733-4408

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Date deposited: 22 Mar 2019 17:30
Last modified: 20 Jul 2019 00:52

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Contributors

Author: A.M. Sirunyan
Author: A. Belyaev ORCID iD
Corporate Author: et al.
Corporate Author: The CMS Collaboration

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