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

2018/08/31 by CMS Collaboration, A. M. Sirunyan, A. Tumasyan +98
Physics and Astronomy · #Astrophysics #Boson #Gauge (firearms) #Higgs boson #High-Energy Particle Collisions Research #Invariant mass #Large Hadron Collider #Luminosity #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Proton #Quantum Chromodynamics and Particle Interactions #RADIUS #Standard Model (mathematical formulation) #hep-ex

paper · pdf · doi:10.1103/physrevlett.122.081804

published as Phys. Rev. Lett. 122, 081804 (2019) · 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)

openalex created_date 2019/02/21 · openalex publication_date 2019/03/01 · arxiv created 2019/03/03 · arxiv updated 2019/03/06 · openalex updated_date 2026/08/06

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.

Citations

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Topcolor assisted technicolor
• Presentation of search results: theCLstechnique
• (i) Fiducial Limits for the Poisson Distribution
• Large Mass Hierarchy from a Small Extra Dimension
• Observation of a new boson with mass near 125 GeV in pp collisions at √(s)=7 and 8 TeV
• An Alternative to Compactification
• The anti-ktjet clustering algorithm
• Search for massive resonances decaying into pairs of boosted bosons in semi-leptonic final states at s √(s) = 8 TeV
• Parton distributions for the LHC run II
• Low-scale technicolor at the Tevatron and LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Searches for heavy ZZ and ZW resonances in the ℓℓqq and ννqq final states in pp collisions at √(s)=13 TeV with the ATLAS detector
• Search for W W/W Z resonance production in ℓνqq final states in pp collisions at √(s)=13 TeV with the ATLAS detector
• Search for heavy resonances decaying into WW in the eν μ ν e ν μ ν final state in pp collisions at √(s)=13 s = 13 \text TeV TeV with the ATLAS detector