Szczegóły publikacji
Opis bibliograficzny
Observation of $H \to b\bar{b}$ decays and VH production with the ATLAS detector / M. Aaboud, [et al.], L. ADAMCZYK, [et al.], T. BOŁD, [et al.], W. DĄBROWSKI, [et al.], G. P. GACH, [et al.], I. GRABOWSKA-BOŁD, [et al.], M. P. GUZIK, [et al.], P. A. JANUS, [et al.], D. KISIELEWSKA, [et al.], S. KOPERNY, [et al.], T. Z. KOWALSKI, [et al.], J. A. KREMER, [et al.], B. MINDUR, [et al.], M. PRZYBYCIEŃ, [et al.] // Physics Letters. B ; ISSN 0370-2693. — 2018 — vol. 786, s. 59–86. — Bibliogr. s. 72–74, Abstr. — Publikacja dostępna online od: 2018-09-14
Autorzy (2935)
Dane bibliometryczne
ID BaDAP | 117738 |
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Data dodania do BaDAP | 2018-11-22 |
Tekst źródłowy | URL |
DOI | 10.1016/j.physletb.2018.09.013 |
Rok publikacji | 2018 |
Typ publikacji | artykuł w czasopiśmie |
Otwarty dostęp | |
Creative Commons | |
Czasopismo/seria | Physics Letters, B |
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.