Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/115136
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Type: Journal article
Title: Search for a high-mass Higgs boson decaying to a W boson pair in pp collisions at s√=8 TeV with the ATLAS detector
Other Titles: Search for a high-mass Higgs boson decaying to a W boson pair in pp collisions at s root=8 TeV with the ATLAS detector
Author: The, A.C.
Aad, G.
Abbott, B.
Abdallah, J.
Abdinov, O.
Aben, R.
Abolins, M.
AbouZeid, O.
Abramowicz, H.
Abreu, H.
Abreu, R.
Abulaiti, Y.
Acharya, B.
Adamczyk, L.
Adams, D.
Adelman, J.
Adomeit, S.
Adye, T.
Affolder, A.
Agatonovic-Jovin, T.
et al.
Citation: Journal of High Energy Physics, 2016; 2016(1):032-1-032-66
Publisher: Springer
Issue Date: 2016
ISSN: 1126-6708
1029-8479
Statement of
Responsibility: 
G. Aad, B. Abbott ... Paul D. Jackson … Lawrence Lee-Jr … Andreas Petridis … Martin White … et al. (ATLAS Collaboration)
Abstract: A search for a high-mass Higgs boson H is performed in the H → WW → ℓνℓν and H → WW → ℓνqq decay channels using pp collision data corresponding to an integrated luminosity of 20.3 fb−1 collected at s√=8 TeV by the ATLAS detector at the Large Hadron Collider. No evidence of a high-mass Higgs boson is found. Limits on σ H × BR(H → WW) as a function of the Higgs boson mass m H are determined in three different scenarios: one in which the heavy Higgs boson has a narrow width compared to the experimental resolution, one for a width increasing with the boson mass and modeled by the complex-pole scheme following the same behavior as in the Standard Model, and one for intermediate widths. The upper range of the search is m H = 1500 GeV for the narrow-width scenario and m H = 1000 GeV for the other two scenarios. The lower edge of the search range is 200–300 GeV and depends on the analysis channel and search scenario. For each signal interpretation, individual and combined limits from the two WW decay channels are presented. At m H = 1500 GeV, the highest-mass point tested, σ H × BR(H → WW) for a narrow-width Higgs boson is constrained to be less than 22 fb and 6.6 fb at 95% CL for the gluon fusion and vector-boson fusion production modes, respectively.
Keywords: Hadron-Hadron scattering; beyond standard model; Higgs physics
Rights: © The Author(s) 2016. This article is published under an open access license. Please check the 'Copyright Information' section for details of this license and what re-use is permitted. If your intended use exceeds what is permitted by the license or if you are unable to locate the licence and re-use information, please contact the Rights and Permissions team.
RMID: 0030041801
DOI: 10.1007/JHEP01(2016)032
Appears in Collections:Physics publications

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