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A search for the Zγ decay mode of the Higgs boson in pp collisions at s=13 TeV with the ATLAS detector

Aad G.
•
Abbott B.
•
Abbott D. C.
altro
Zwalinski L.
2020
  • journal article

Periodico
PHYSICS LETTERS. SECTION B
Abstract
A search for the Zγ decay of the Higgs boson, with Z boson decays into pairs of electrons or muons is presented. The analysis uses proton–proton collision data at s = 13 TeV corresponding to an integrated luminosity of 139 fb−1 recorded by the ATLAS detector at the Large Hadron Collider. The observed data are consistent with the expected background with a p-value of 1.3%. An upper limit at 95% confidence level on the production cross-section times the branching ratio for pp→H→Zγ is set at 3.6 times the Standard Model prediction while 2.6 times is expected in the presence of the Standard Model Higgs boson. The best-fit value for the signal yield normalised to the Standard Model prediction is 2.0−0.9+1.0 where the statistical component of the uncertainty is dominant.
DOI
10.1016/j.physletb.2020.135754
WOS
WOS:000581871500054
Archivio
http://hdl.handle.net/11390/1193941
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85092316024
Diritti
open access
Web of Science© citazioni
36
Data di acquisizione
Mar 28, 2024
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