Search for heavy resonances decaying into a Z or W boson and a Higgs boson in final states with leptons and b-jets in 139 fb−1 of pp collisions at √s = 13 TeV with the ATLAS detector

ATLAS Publications, T.M. Carter, R.Y. Gonzalez Andana, A. Hasib, M.P. Heath, S. Palazzo, V.A. Parrish, E.P. Takeva, N. Themistokleous, E.M. Villhauer, E. Zaid

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

This article presents a search for new resonances decaying into a Z or W boson
and a 125 GeV Higgs boson h, and it targets the ν ¯νb¯b, `+`−b¯b, or `±νb¯b final states, where ` = e or μ, in proton-proton collisions at √s = 13 TeV. The data used correspond to a total integrated luminosity of 139 fb−1 collected by the ATLAS detector during Run 2 of the LHC at CERN. The search is conducted by examining the reconstructed invariant or transverse mass distributions of Zh or W h candidates for evidence of a localised excess in the mass range from 220 GeV to 5 TeV. No significant excess is observed and 95% confidence-level
upper limits between 1.3 pb and 0.3 fb are placed on the production cross section times branching fraction of neutral and charged spin-1 resonances and CP-odd scalar bosons. These limits are converted into constraints on the parameter space of the Heavy Vector Triplet model and the two-Higgs-doublet model.
Original languageEnglish
Article number016
Pages (from-to)1-67
Number of pages67
Journal Journal of High Energy Physics
Volume2023
Issue number6
DOIs
Publication statusPublished - 5 Jun 2023

Keywords / Materials (for Non-textual outputs)

  • Hadron-Hadron Scattering
  • Beyond the Standard Model Searches

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