Search for a scalar or pseudoscalar dilepton resonance produced in association with a massive vector boson or top quark-antiquark pair in multilepton events at √𝑠 =13 TeV
File(s)
Published version
Author(s)
Type
Journal Article
Abstract
A search for beyond the standard model spin-0 bosons, 𝜙, that decay into pairs of electrons, muons, or tau leptons is presented. The search targets the associated production of such bosons with a 𝑊 or 𝑍 gauge boson, or a top quark-antiquark pair, and uses events with three or four charged leptons, including hadronically decaying tau leptons. The proton-proton collision data set used in the analysis was collected at the LHC from 2016 to 2018 at a center-of-mass energy of 13 TeV, and corresponds to an integrated luminosity of 138 fb−1. The observations are consistent with the predictions from standard model processes. Upper limits are placed on the product of cross sections and branching fractions of such new particles over the mass range of 15 to 350 GeV with scalar, pseudoscalar, or Higgs-boson-like couplings, as well as on the product of coupling parameters and branching fractions. Several model-dependent exclusion limits are also presented. For a Higgs-boson-like 𝜙 model, limits are set on the mixing angle of the Higgs boson with the 𝜙 boson. For the associated production of a 𝜙 boson with a top quark-antiquark pair, limits are set on the coupling to top quarks. Finally, limits are set for the first time on a fermiophilic dilaton-like model with scalar couplings and a fermiophilic axion-like model with pseudoscalar couplings.
Date Issued
2024-07-01
Date Acceptance
2024-05-24
Citation
Physical Review D: Particles, Fields, Gravitation and Cosmology, 2024, 110 (1)
ISSN
1550-2368
Publisher
American Physical Society
Journal / Book Title
Physical Review D: Particles, Fields, Gravitation and Cosmology
Volume
110
Issue
1
Copyright Statement
© 2024 CERN, for the CMS Collaboration Published by the American Physical Society under the terms of
the Creative Commons Attribution 4.0 International license.
Further distribution of this work must maintain attribution to
the author(s) and the published article’s title, journal citation,
and DOI. Funded by SCOAP3
.
the Creative Commons Attribution 4.0 International license.
Further distribution of this work must maintain attribution to
the author(s) and the published article’s title, journal citation,
and DOI. Funded by SCOAP3
.
License URL
Identifier
https://doi.org/10.1103/physrevd.110.012013
Publication Status
Published
Article Number
012013
Date Publish Online
2024-07-24