A search for the Zγ decay mode of the Higgs boson in pp collisions at s=13 TeV with the ATLAS detector
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Fecha
2020-10
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Facultad/escuela
Idioma
en
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Editor
Elsevier B.V.
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Licencia CC
Attribution 4.0 International (CC BY 4.0)
Licencia CC
https://creativecommons.org/licenses/by/4.0/
Resumen
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. © 2020 The Author
Notas
Indexación: Scopus.
Palabras clave
Boson, First Cervica, Collision, Top Quark, Quantum Chromodynamic, Cross Section, Partons, Higgs Bosons
Citación
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy PhysicsOpen AccessVolume 80910 October 2020 Article number 135754
DOI
10.1016/j.physletb.2020.135754