Search for a new neutral gauge boson produced in association with one or two b jets and decaying into a pair of muons in proton-proton collisions at √<i>s</i>=13 TeV


Chekhovsky V., Hayrapetyan A., Makarenko V., Tumasyan A., Adam W., Andrejkovic J., ...More

JOURNAL OF HIGH ENERGY PHYSICS, no.7, 2026 (SCI-Expanded, Scopus)

  • Publication Type: Article / Article
  • Publication Date: 2026
  • Doi Number: 10.1007/jhep07(2026)008
  • Journal Name: JOURNAL OF HIGH ENERGY PHYSICS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, INSPEC, MathSciNet, zbMATH, Directory of Open Access Journals, Academic Search Ultimate (EBSCO), Technology Collection (ProQuest)
  • Keywords: Beyond Standard Model, Hadron-Hadron Scattering
  • Istanbul University Affiliated: Yes

Abstract

A search for a new neutral gauge boson, Z', produced in association with one or two jets, including at least one b jet, and decaying into a pair of muons is presented. The analysis uses proton-proton collision data collected with the CMS detector at root s = 13TeV, corresponding to an integrated luminosity of 138 fb(-1). No significant deviation from background expectations is observed. Upper limits at 95% confidence level on the product of cross section, branching fraction to dimuons, acceptance, and efficiency, from 0.2 to 2 fb, are set for Z' boson masses between 125 and 350 GeV. Process-dependent products of acceptance and efficiency, and model-independent limits on the signal yield are provided. These are the only results to date in the 125-200 GeV mass range and the most stringent for b quark fusion production modes in the 200-350 GeV range, complementing inclusive Z' boson searches.