Search for Supersymmetry with Gauge-Mediated Breaking in Diphoton Events with Missing Transverse Energy at CDF II
Name
Aaltonen-2010-Search for Supersymmetry with Gauge-Mediated Breaking in Diphoton Events with Missing Transverse Energy at CDF II.pdf
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320.13 KB
Format
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Checksum (MD5)
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Author(s)
Bauer, Gerry P.
Choudalakis, Georgios
Gomez-Ceballos, Guillelmo
Goncharov, M.
Hahn, Kristian Allan
Henderson, C.
Knuteson, Bruce O.
Makhoul, K.
Paus, Christoph M. E.
Xie, Si
Date Issued
January 2010
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Aaltonen, T. et al. “Search for Supersymmetry with Gauge-Mediated Breaking in Diphoton Events with Missing Transverse Energy at CDF II.” Physical Review Letters 104.1 (2010): 011801. © 2010 The American Physical Society
Version
Final published version
Abstract
We present the results of a search for supersymmetry with gauge-mediated breaking and χ˜[subscript 1][superscript 0]→γG˜ in the γγ+missing transverse energy final state. In 2.6±0.2 fb[superscript -1] of pp̅ collisions at √s=1.96 TeV recorded by the CDF II detector we observe no candidate events, consistent with a standard model background expectation of 1.4±0.4 events. We set limits on the cross section at the 95% C.L. and place the world’s best limit of 149 GeV/c[superscript 2] on the χ˜[subscript 1][superscript 0] mass at τχ˜[subscript 1][superscript 0]≪1 ns. We also exclude regions in the χ˜[subscript 1][superscript 0] mass-lifetime plane for τχ˜[subscript 1][superscript 0]≲2 ns.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.104.011801
