Combination of searches for heavy vector boson resonances in proton-proton collisions at $\sqrt{s}$ = 13 TeV

Abstract

A combined statistical analysis of searches for heavy vector boson resonances decaying into pairs of W, Z, or Higgs bosons, as well as into quark pairs ($\mathrm{q}\bar{\mathrm{q}}$, $\mathrm{b}\bar{\mathrm{b}}$, $\mathrm{t}\bar{\mathrm{t}}$, $\mathrm{t}\bar{\mathrm{b}}$) or lepton pairs (${\ell }^{+}{\ell }^{-}$, $\ell \bar{\nu }$), with $\ell =$ e, $\mu$, $\tau$, is presented. The results are based on proton-proton collision data at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 138 fb${}^{-1}$, collected by the CMS experiment from 2016 to 2018. No significant deviation from the expectations of the standard model is observed. The results are interpreted in the simplified heavy vector triplet (HVT) framework, setting 95% confidence level upper limits on the production cross sections and coupling strengths of the HVT bosons to standard model particles. The results exclude HVT resonances with masses below 5.5 TeV in a weakly coupled scenario, below 4.8 TeV in a strongly coupled scenario, and up to 2.0 TeV in the case of production via vector boson fusion. The combination provides the most stringent constraints to date on new phenomena predicted by the HVT model.

arXiv commentReplaced 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/B2G-25-003 (CMS Public Pages)

References in corpus (24)

• The anti-k_t jet clustering algorithm
• FastJet user manual
• Asymptotic formulae for likelihood-based tests of new physics
• Parton distributions for the LHC Run II
• Confidence Level Computation for Combining Searches with Small Statistics
• Parton distributions from high-precision collider data
• Soft Drop
• Little Higgs Review
• ParticleNet: Jet Tagging via Particle Clouds
• Dark Matter Benchmark Models for Early LHC Run-2 Searches: Report of the ATLAS/CMS Dark Matter Forum
• Little Higgs Models and Their Phenomenology
• Pileup Per Particle Identification
• Composite Higgses
• On the effect of resonances in composite Higgs phenomenology
• Jet Flavour Classification Using DeepJet
• Heavy Vector Triplets: Bridging Theory and Data
• Electroweak Limits on General New Vector Bosons
• Minimal Z' models: present bounds and early LHC reach
• The CMS statistical analysis and combination tool: COMBINE
• Combining searches of Z' and W' bosons
• A weakly constrained W' at the early LHC
• Two Simple W' Models for the Early LHC
• Searches for Higgs boson production through decays of heavy resonances
• Charged di-boson production at the LHC in a 4-site model with a composite Higgs boson