Search for narrow H$\gamma$ resonances in proton-proton collisions at $\sqrt{s}=$ 13 TeV

Abstract

A search for heavy, narrow resonances decaying to a Higgs boson and a photon (H$\gamma$) 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 that is reconstructed as a single, large-radius jet are considered, and the $\gamma$+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 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 of H$\gamma$ resonances are set as a function of the resonance mass in the range of 720-3250 GeV, representing the most stringent constraints to date.

Replaced with the published version. Added the journal reference and the DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/EXO-17-019 (CMS Public Pages)

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Cited by in corpus (5)

• Search for heavy resonances decaying to a photon and a hadronically decaying $Z/W/H$ boson in $pp$ collisions at $\sqrt{s}=13$ $\mathrm{TeV}$ with the ATLAS detector
• Search for heavy resonances decaying into a photon and a hadronically decaying Higgs boson in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Reconstruction and identification of $H\to W{W}^{\ast }$ with high transverse momentum in the full hadronic final state
• Search for $\gamma$H production and constraints on the Yukawa couplings of light quarks to the Higgs boson
• The $\gamma b\overline{b}$ production via ${\gamma }^{\ast }{\gamma }^{\ast }$ collisions at the ILC and LHC