Search for Production of Resonant States in the Photon-Jet Mass Distribution Using pp Collisions at √s=7 TeV Collected by the ATLAS Detector
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Aad-2012-Search for Production of Resonant States in the Photon-Jet Mass Distribution Using pp Collisions.pdf
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382.66 KB
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Author(s)
Taylor, Frank E.
Date Issued
May 2012
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
G. Aad et al. (ATLAS Collaboration). "Search for Production of Resonant States in the Photon-Jet Mass Distribution Using pp Collisions at √s=7 TeV Collected by the ATLAS Detector" Physical Review Letters 108, 211802 (2012). © 2012 CERN, for the ATLAS Collaboration
Version
Final published version
Abstract
This Letter describes a model-independent search for the production of new resonant states in photon+jet events in 2.11 fb[superscript -1] of proton-proton collisions at √s=7 TeV. We compare the photon+jet mass distribution to a background model derived from data and find consistency with the background-only hypothesis. Given the lack of evidence for a signal, we set 95% credibility level limits on generic Gaussian-shaped signals and on a benchmark excited-quark (q*) model, excluding 2 TeV Gaussian resonances with cross section times branching fraction times acceptance times efficiency near 5 fb and excluding q* masses below 2.46 TeV, respectively.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.108.211802
