Search for a neutral gauge boson with non-universal fermion couplings in vector boson fusion processes in proton-proton collisions at $\sqrt{s}=$ 13$~\mathrm{TeV}$

CMS Physics Analysis Summaries
Report number	CMS-PAS-EXO-21-015
Title	Search for a neutral gauge boson with non-universal fermion couplings in vector boson fusion processes in proton-proton collisions at $\sqrt{s}=$ 13$~\mathrm{TeV}$
Corporate author(s)	CMS Collaboration
Collaboration	CMS Collaboration
Subject category	Particle Physics - Experiment
Accelerator/Facility, Experiment	CERN LHC ; CMS
Abstract	The first search for a heavy neutral spin-1 gauge boson ($\mathrm{Z'}$) produced via vector boson fusion processes is presented. The analysis considers scenarios in which the $\mathrm{Z'}$ boson has non-universal fermion couplings, favoring higher-generation fermions. This offers a new physics phase space not yet fully explored at the LHC. The analysis is performed using LHC data at $\sqrt{s}=13~\mathrm{TeV}$, collected from 2016 to 2018, corresponding to an integrated luminosity of $138~\mathrm{fb}^{-1}$. The data are consistent with the standard model expectation. Upper limits are set on the product of the $\mathrm{Z'}$ cross section and the branching fraction for a $\mathrm{Z'}$ boson decaying to $\tau\tau$ or $\mathrm{WW}$. Masses below $2.45~\mathrm{TeV}$ are excluded, depending on the $\mathrm{Z'}$ coupling to weak bosons.
Other source	Inspire
Related	superseded by: CERN-EP-2024-326
Email contact: [email protected] Fulltext in PDF Figure_002-d Figure_002-a Figure_002-b Figure_002-c Figure_001-d Figure_001-c Figure_001-b Figure_001-a Additional information for the analysis (restricted access)