Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/102206
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Type: Journal article
Title: Search for Higgs boson pair production in the γγb b ⁻ final state using pp collision data at √s = 8 TeV from the ATLAS Detector
Author: Aad, G.
Abbott, B.
Abdallah, J.
Abdel Khalek, S.
Abdinov, O.
Aben, R.
Abi, B.
Abolins, M.
Abouzeid, O.
Abramowicz, H.
Abreu, H.
Abreu, R.
Abulaiti, Y.
Acharya, B.
Adamczyk, L.
Adams, D.
Adelman, J.
Adomeit, S.
Adye, T.
Agatonovic-Jovin, T.
et al.
Citation: Physical Review Letters, 2015; 114(8):081802-1-081802-19
Publisher: American Physical Society
Issue Date: 2015
ISSN: 0031-9007
1079-7114
Statement of
Responsibility: 
G. Aad ... P. Jackson ... L. Lee ... A. Petridis ... N. Soni ... M.J. White ... et al. (ATLAS Collaboration)
Abstract: Searches are performed for resonant and nonresonant Higgs boson pair production in the γγbb¯ final state using 20 fb⁻¹ of proton-proton collisions at a center-of-mass energy of 8 TeV recorded with the ATLAS detector at the CERN Large Hadron Collider. A 95% confidence level upper limit on the cross section times branching ratio of nonresonant production is set at 2.2 pb, while the expected limit is 1.0 pb. The difference derives from a modest excess of events, corresponding to 2.4 standard deviations from the background-only hypothesis. The limit observed in the search for a narrow X → hh resonance ranges between 0.7 and 3.5 pb as a function of the resonance mass.
Keywords: (ATLAS Collaboration)
Rights: © 2015 CERN, for the ATLAS Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published articles title, journal citation, and DOI.
RMID: 0030024337
DOI: 10.1103/PhysRevLett.114.081802
Published version: http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.114.081802
Appears in Collections:Physics publications

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