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Observation of H→bb ̄ decays and VH production with the ATLAS detector

Aaboud M.
•
Aad G.
•
Abbott B.
altro
Zwalinski L.
2018
  • journal article

Periodico
PHYSICS LETTERS. SECTION B
Abstract
A search for the decay of the Standard Model Higgs boson into a pair when produced in association with a W or Z boson is performed with the ATLAS detector. The data, corresponding to an integrated luminosity of were collected in proton–proton collisions during Run 2 of the Large Hadron Collider at a centre-of-mass energy of . For a Higgs boson mass of , an excess of events over the expected background from other Standard Model processes is found with an observed (expected) significance of 4.9 (4.3) standard deviations. A combination with the results from other searches in Run 1 and in Run 2 for the Higgs boson in the decay mode is performed, which yields an observed (expected) significance of 5.4 (5.5) standard deviations, thus providing direct observation of the Higgs boson decay into b-quarks. The ratio of the measured event yield for a Higgs boson decaying into to the Standard Model expectation is . Additionally, a combination of Run 2 results searching for the Higgs boson produced in association with a vector boson yields an observed (expected) significance of 5.3 (4.8) standard deviations.
DOI
10.1016/j.physletb.2018.09.013
WOS
WOS:000452318400011
Archivio
http://hdl.handle.net/11390/1165114
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85054174625
http://www.sciencedirect.com/science/journal/03702693
Diritti
open access
Soggetti
  • LHC HIggs bottom

Scopus© citazioni
158
Data di acquisizione
Jun 14, 2022
Vedi dettagli
Web of Science© citazioni
208
Data di acquisizione
Mar 28, 2024
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