Search for Higgs and Z boson decays to J/ψγ and ϒ(nS)γ with the ATLAS detector
Name
PhysRevLett.114.121801.pdf
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414.07 KB
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Author(s)
Taylor, Frank E.
Date Issued
March 2015
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
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.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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Creative Commons Attribution 3.0 Unported Licence
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.114.121801
