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https://hdl.handle.net/10316/106542
Title: | A search for the Zγ decay mode of the Higgs boson in pp collisions at s=13 TeV with the ATLAS detector | Authors: | Fiolhais, M. C. N. Gonçalo, R. Veloso, F. Wolters, H. ATLAS Collaboration |
Issue Date: | 2020 | Publisher: | Elsevier | Serial title, monograph or event: | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics | Volume: | 809 | Abstract: | A search for the Zγdecay of the Higgs boson, with Zboson decays into pairs of electrons or muons is presented. The analysis uses proton–proton collision data at √s= 13TeV corresponding to an integrated luminosity of 139fb−1recorded 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→Zγis set at 3.6times the Standard Model prediction while 2.6times 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+1.0−0.9where the statistical component of the uncertainty is dominant. | URI: | https://hdl.handle.net/10316/106542 | DOI: | 10.1016/j.physletb.2020.135754 | Rights: | openAccess |
Appears in Collections: | FCTUC Física - Artigos em Revistas Internacionais |
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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.pdf | 1.57 MB | Adobe PDF | View/Open |
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