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Search for an additional, heavy Higgs boson in the H → ZZ decay channel at √s = 8 TeV in pp collision data with the ATLAS detector

Aad, G.
•
Abbott, B.
•
Abdallah, J.
altro
Atlas, Collaboration
2016
  • journal article

Periodico
THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS
Abstract
A search is presented for a high-mass Higgs boson in the , , , and decay modes using the ATLAS detector at the CERN Large Hadron Collider. The search uses proton-proton collision data at a centre-of-mass energy of 8 TeV corresponding to an integrated luminosity of 20.3 fb. The results of the search are interpreted in the scenario of a heavy Higgs boson with a width that is small compared with the experimental mass resolution. The Higgs boson mass range considered extends up to for all four decay modes and down to as low as 140 , depending on the decay mode. No significant excess of events over the Standard Model prediction is found. A simultaneous fit to the four decay modes yields upper limits on the production cross-section of a heavy Higgs boson times the branching ratio to boson pairs. 95 % confidence level upper limits range from 0.53 pb at GeV to 0.008 pb at GeV for the gluon-fusion production mode and from 0.31 pb at GeV to 0.009 pb at GeV for the vector-boson-fusion production mode. The results are also interpreted in the context of Type-I and Type-II two-Higgs-doublet models.
DOI
10.1140/epjc/s10052-015-3820-z
WOS
WOS:000368711500001
Archivio
http://hdl.handle.net/11390/1097307
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84983580819
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84983580819&partnerID=40&md5=e9c90f69852f297c98e8846ca9c7a295
Diritti
open access
Soggetti
  • Higg

  • Hadron-Hadron Scatter...

Scopus© citazioni
179
Data di acquisizione
Jun 7, 2022
Vedi dettagli
Web of Science© citazioni
181
Data di acquisizione
Mar 6, 2024
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