Search for Higgs Boson Pair Production in the γγb[bar over b] Final State Using pp Collision Data at √s = 8 TeV from the ATLAS Detector
Name
PhysRevLett.114.081802.pdf
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418.05 KB
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Author(s)
Taylor, Frank E.
Date Issued
February 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 Boson Pair Production in the γγb[bar over b] Final State Using pp Collision Data at √s = 8 TeV from the ATLAS Detector.” Physical Review Letters 114, no. 8 (February 2015). © 2015 CERN, for the ATLAS Collaboration
Version
Final published version
Abstract
Searches are performed for resonant and nonresonant Higgs boson pair production in the γγb[bar over b] final state using 20 fb[superscript −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.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution 3.0 Unported Licence
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.114.081802
