Search for new Higgs bosons via same-sign top quark pair production in association with a jet in proton-proton collisions at s=13TeV

The CMS collaboration

Research output: Contribution to journalArticlepeer-review

Abstract

A search is presented for new Higgs bosons in proton-proton (pp) collision events in which a same-sign top quark pair is produced in association with a jet, via the pp→tH/A→ttc‾ and pp→tH/A→ttu‾ processes. Here, H and A represent the extra scalar and pseudoscalar boson, respectively, of the second Higgs doublet in the generalized two-Higgs-doublet model (g2HDM). The search is based on pp collision data collected at a center-of-mass energy of 13 TeV with the CMS detector at the LHC, corresponding to an integrated luminosity of 138 fb−1. Final states with a same-sign lepton pair in association with jets and missing transverse momentum are considered. New Higgs bosons in the 200–1000 GeV mass range and new Yukawa couplings between 0.1 and 1.0 are targeted in the search, for scenarios in which either H or A appear alone, or in which they coexist and interfere. No significant excess above the standard model prediction is observed. Exclusion limits are derived in the context of the g2HDM.

Original languageEnglish
Article number138478
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume850
DOIs
StatePublished - Mar 2024

Keywords

  • CMS
  • Extra Higgs boson
  • Top quarks
  • Yukawa couplings

Fingerprint

Dive into the research topics of 'Search for new Higgs bosons via same-sign top quark pair production in association with a jet in proton-proton collisions at s=13TeV'. Together they form a unique fingerprint.

Cite this