Combination of CMS searches for heavy vector boson resonances at sqrt(s)= 13 TeV

CMS Physics Analysis Summaries
Report number	CMS-PAS-B2G-25-003
Title	Combination of CMS searches for heavy vector boson resonances at sqrt(s)= 13 TeV
Corporate author(s)	CMS Collaboration
Collaboration	CMS Collaboration
Subject category	Particle Physics - Experiment
Accelerator/Facility, Experiment	CERN LHC ; CMS
Abstract	A combined statistical analysis of searches for heavy vector boson resonances decaying into pairs of $\text{W}$, $\text{Z}$, or $\text{H}$ bosons, as well as into quark pairs ($\text{q}\bar{\text{q}}$, $\text{b}\bar{\text{b}}$, $\text{t}\bar{\text{t}}$, $\text{tb}$) or lepton pairs ($\ell\ell$, $\ell\nu$), with $\ell = e, \mu, \tau$, is presented. The results are based on proton-proton collision data at a center-of-mass energy of $13~\mathrm{TeV}$, corresponding to an integrated luminosity of $138~\mathrm{fb}^{-1}$, collected by the CMS experiment between 2016 and 2018. No significant deviation from the expectations of the standard model (SM) 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 to SM particles of the heavy vector bosons. The combination provides the most stringent constraints to date on new phenomena predicted by the HVT model. The results exclude heavy vector boson resonances with a mass below $5.5~\mathrm{TeV}$ in a weakly-coupled scenario, below $4.8~\mathrm{TeV}$ in a strongly-coupled scenario, and up to $2.0~\mathrm{TeV}$ in the case of production via vector-boson fusion. These results represent a significant improvement over previous constraints, driven by the inclusion of the full data set and advances in the underlying analyses.
Related	superseded by: CERN-EP-2025-270
Email contact: cms-pag-conveners-b2g@cern.ch Fulltext in PDF Figure_008-b Figure_008-a Figure_006-e Figure_002-b Figure_004-b Figure_004-a Figure_007-a Figure_001-e Figure_007-b Figure_001-c Figure_006-a Figure_006-b Figure_006-c Figure_006-d Figure_002-a Figure_006-f Figure_005 Figure_001-d Figure_003 Figure_001-b Figure_001-a Additional information for the analysis (restricted access)