Search for diphoton events with large missing transverse momentum in 7 TeV proton–proton collision data with the ATLAS detector
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Aad-2012-Search for diphoton.pdf
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1.17 MB
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Author(s)
Taylor, Frank E.
Date Issued
October 2012
Journal
Physics Letters B
Publisher
Elsevier
Citation
Aad, G., T. Abajyan, B. Abbott, J. Abdallah, S. Abdel Khalek, A.A. Abdelalim, O. Abdinov, et al. “Search for Diphoton Events with Large Missing Transverse Momentum in 7 TeV Proton–proton Collision Data with the ATLAS Detector.” Physics Letters B 718, no. 2 (December 2012): 411–430.
Version
Final published version
Abstract
A search for diphoton events with large missing transverse momentum has been performed using proton–proton collision data at √s = 7 TeV recorded with the ATLAS detector, corresponding to an integrated luminosity of 4.8 fb[superscript −1]. No excess of events was observed above the Standard Model prediction and model-dependent 95% confidence level exclusion limits are set. In the context of a generalised model of gauge-mediated supersymmetry breaking with a bino-like lightest neutralino of mass above 50 GeV, gluinos (squarks) below 1.07 TeV (0.87 TeV) are excluded, while a breaking scale Λ below 196 TeV is excluded for a minimal model of gauge-mediated supersymmetry breaking. For a specific model with one universal extra dimension, compactification scales [1 over R] < 1.40 TeV are excluded. These limits provide the most stringent tests of these models to date.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
https://doi.org/10.1016/j.physletb.2012.10.069
