Please use this identifier to cite or link to this item:
https://hdl.handle.net/20.500.11851/3581
Title: | Observation of H›bb¯ decays and VH production with the ATLAS detector | Authors: | The ATLAS Collaboration Sultansoy, Saleh |
Keywords: | Collisions jets proton–proton collisions |
Publisher: | Elsevier B.V. | Source: | ATLAS collaboration. (2018). Observation of H? bb decays and VH production with the ATLAS detector. Physics Letters B, 786, 59-86. | 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) | URI: | https://www.sciencedirect.com/science/article/pii/S0370269318307056?via%3Dihub https://hdl.handle.net/20.500.11851/3581 |
ISSN: | 3702693 |
Appears in Collections: | Malzeme Bilimi ve Nanoteknoloji Mühendisliği Bölümü / Department of Material Science & Nanotechnology Engineering Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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sultansoy_decays.pdf | 2.04 MB | Adobe PDF | View/Open |
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