Search for narrow Hγ resonances in proton-proton collisions at s =13 TeV

CMS Collaboration

Research output: Contribution to journalArticle

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 fb-1 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 Hγ resonances are set as a function of their mass in the range of 720-3250 GeV, representing the most stringent constraints to date.

Original languageEnglish
Article number081804
JournalPhysical Review Letters
Volume122
Issue number8
DOIs
Publication statusPublished - 2019 Mar 1

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collisions
protons
Higgs bosons
radii
photons
mass spectra
center of mass
luminosity
quarks
sensitivity
detectors
predictions
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Search for narrow Hγ resonances in proton-proton collisions at s =13 TeV. / CMS Collaboration.

In: Physical Review Letters, Vol. 122, No. 8, 081804, 01.03.2019.

Research output: Contribution to journalArticle

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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 fb-1 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 Hγ 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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