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Search for Higgs and Z boson decays to J/ψγ and ϒ(nS)γ with the ATLAS detector

Author(s)
Taylor, Frank E.
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Abstract
A search for the decays of the Higgs and Z bosons to J/ψγ and Υ(nS)γ (n = 1,2,3) is performed with pp collision data samples corresponding to integrated luminosities of up to 20.3  fb[superscript −1] collected at √s = 8  TeV with the ATLAS detector at the CERN Large Hadron Collider. No significant excess of events is observed above expected backgrounds and 95% C.L. upper limits are placed on the branching fractions. In the J/ψγ final state the limits are 1.5 × 10[superscript −3] and 2.6 × 10[superscript −6] for the Higgs and Z boson decays, respectively, while in the Υ(1S,2S,3S)γ final states the limits are (1.3,1.9,1.3) × 10[superscript −3] and (3.4,6.5,5.4) × 10[superscript −6], respectively.
Date issued
2015-03
URI
http://hdl.handle.net/1721.1/97400
Department
Massachusetts Institute of Technology. Department of Physics
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Aad, G., B. Abbott, J. Abdallah, S. Abdel Khalek, O. Abdinov, R. Aben, B. Abi, et al. “Search for Higgs and Z Boson Decays to J/ψγ and ϒ(nS)γ with the ATLAS Detector.” Physical Review Letters 114, no. 12 (March 2015). © 2015 CERN, for the ATLAS Collaboration
Version: Final published version
ISSN
0031-9007
1079-7114

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