Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/102027
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Type: Journal article
Title: Search for the bb⁻ decay of the Standard Model Higgs boson in associated (W/Z)H production with the ATLAS detector
Other Titles: Search for the bb(-) decay of the Standard Model Higgs boson in associated (W/Z)H production with the ATLAS detector
Author: Aad, G.
ATLAS collaboration
Citation: Journal of High Energy Physics, 2015; 2015(1):69-1-69-89
Publisher: Springer
Issue Date: 2015
ISSN: 1126-6708
1029-8479
Statement of
Responsibility: 
G. Aad ... P. Jackson ... L. Lee ... A. Petridis ... N. Soni ... M.J. White ... et al. (ATLAS Collaboration)
Abstract: A search for the bb⁻ decay of the Standard Model Higgs boson is performed with the ATLAS experiment using the full dataset recorded at the LHC in Run 1. The integrated luminosities used are 4.7 and 20.3 fb⁻¹ from pp collisions at √s = 7 and 8 TeV, respectively. The processes considered are associated (W/Z)H production, where W → eν/μν, Z → ee/μμ and Z → νν. The observed (expected) deviation from the background-only hypothesis corresponds to a significance of 1.4 (2.6) standard deviations and the ratio of the measured signal yield to the Standard Model expectation is found to be μ = 0.52 ± 0.32 (stat.) ± 0.24 (syst.) for a Higgs boson mass of 125.36 GeV. The analysis procedure is validated by a measurement of the yield of (W/Z)Z production with Z→bb⁻ in the same final states as for the Higgs boson search, from which the ratio of the observed signal yield to the Standard Model expectation is found to be 0.74 ± 0.09 (stat.) ± 0.14 (syst.).
Keywords: Hadron-Hadron Scattering
Rights: Open Access, Copyright CERN, for the benefit of the ATLAS Collaboration. Article funded by SCOAP3. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
RMID: 0030021359
DOI: 10.1007/JHEP01(2015)069
Appears in Collections:Physics publications

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