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Abstract:

A search for the decay of the Standard Model Higgs boson into a bb¯ 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 79.8fb −1 were collected in proton–proton collisions during Run 2 of the Large Hadron Collider at a centre-of-mass energy of 13TeV. For a Higgs boson mass of 125GeV, 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 bb¯ 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 bb¯ to the Standard Model expectation is 1.01±0.12(stat.) −0.15 +0.16 (syst.). 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. © 2018 The Author(s)

Registro:

Documento: Artículo
Título:Observation of H→bb¯ decays and VH production with the ATLAS detector
Autor:Aaboud, M. et al.
Este artículo contiene 2936 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 2936 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Año:2018
Volumen:786
Página de inicio:59
Página de fin:86
DOI: http://dx.doi.org/10.1016/j.physletb.2018.09.013
Título revista:Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Título revista abreviado:Phys Lett Sect B Nucl Elem Part High-Energy Phys
ISSN:03702693
CODEN:PYLBA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03702693_v786_n_p59_Aaboud

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Citas:

---------- APA ----------
(2018) . Observation of H→bb¯ decays and VH production with the ATLAS detector. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 786, 59-86.
http://dx.doi.org/10.1016/j.physletb.2018.09.013
---------- CHICAGO ----------
Aaboud, M. "Observation of H→bb¯ decays and VH production with the ATLAS detector" . Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 786 (2018) : 59-86.
http://dx.doi.org/10.1016/j.physletb.2018.09.013
---------- MLA ----------
Aaboud, M. "Observation of H→bb¯ decays and VH production with the ATLAS detector" . Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 786, 2018, pp. 59-86.
http://dx.doi.org/10.1016/j.physletb.2018.09.013
---------- VANCOUVER ----------
Aaboud, M. Observation of H→bb¯ decays and VH production with the ATLAS detector. Phys Lett Sect B Nucl Elem Part High-Energy Phys. 2018;786:59-86.
http://dx.doi.org/10.1016/j.physletb.2018.09.013