Search for a new Z′ gauge boson via the pp →W± (*) →z′μ±ν →μ∓μ μ±ν process in pp collisions at vs =13 TeV with the ATLAS detector


Aad G., Aakvaag E., Abbott B., Abeling K., Abicht N., Abidi S., ...More

Physical Review D, vol.110, no.7, 2024 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 110 Issue: 7
  • Publication Date: 2024
  • Doi Number: 10.1103/physrevd.110.072008
  • Journal Name: Physical Review D
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, INSPEC, zbMATH, Nature Index
  • Istanbul University Affiliated: Yes

Abstract

A search for a new Z′ gauge boson predicted by Lµ-Lτ models, based on charged-current Drell-Yan production, pp→W±(∗)→Z′μ±ν→μ±μ μ±ν, is presented. The data sample used corresponds to an integrated luminosity of 140 fb-1 of proton-proton collisions at s=13 TeV recorded by the ATLAS detector at the Large Hadron Collider. The search examines a final state of 3μ plus large missing transverse momentum. Upper limits are set on the Z′ production cross section times branching ratio in the mass range of 5-81 GeV. After combining with the previous Z′ search using the neutral-current Drell-Yan production with a 4μ final state, the most stringent exclusion limits to date are achieved in the parameter space of the Z′ coupling strength and mass.