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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

Aad G.
•
Abbott B.
•
Abbott D. C.
altro
Zwalinski L.
2023
  • journal article

Periodico
JOURNAL OF HIGH ENERGY PHYSICS
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 ̄ , or l±νbb ̄ final states, where l = 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 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. [Figure not available: see fulltext.].
DOI
10.1007/JHEP06(2023)016
Archivio
https://hdl.handle.net/11390/1252184
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85161433187
https://ricerca.unityfvg.it/handle/11390/1252184
Diritti
open access
Soggetti
  • Beyond the Standard M...

  • Hadron-Hadron Scatter...

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