학술논문
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
Document Type
Original Paper
Author
Source
Journal of High Energy Physics. 2023(6)
Subject
Language
English
ISSN
1029-8479
Abstract
Abstract: 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 νν¯bb¯ℓ+ℓ−bb¯ℓ±νbb¯s, νν¯bb¯ℓ+ℓ−bb¯ℓ±νbb¯s, or νν¯bb¯ℓ+ℓ−bb¯ℓ±νbb¯s final states, where ℓ = e or μ, in proton-proton collisions at νν¯bb¯ℓ+ℓ−bb¯ℓ±νbb¯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 Wh 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.