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Search for anomalous production of diphoton events with missing transverse energy at CDF and limits on gauge-mediated supersymmetry-breaking models

Author(s)
Anikeev, K.; Bolshov, Arkadiy; Gomez-Ceballos, Guillelmo; Iyutin, Boris; Kim, T. H.; Knuteson, Bruce O.; Korn, Andreas; Kravchenko, I.; Leonardo, N.; Menzemer, S.; Mulhearn, M.; Paus, Christoph M. E.; Rosenson, Lawrence; Tether, S.; Bauer, Gerry P; Rakitin, A.; Sumorok, Konstanty C; ... Show more Show less
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Abstract
We present the results of a search for anomalous production of diphoton events with large missing transverse energy using the Collider Detector at Fermilab. In 202  pb[superscript -1] of pp̅ collisions at √s=1.96  TeV we observe no candidate events, with an expected standard model background of 0.27±0.07(stat)±0.10(syst) events. The results exclude a lightest chargino of mass less than 167  GeV/c[superscript 2], and lightest neutralino of mass less than 93  GeV/c[superscript 2] at 95% C.L. in a gauge-mediated supersymmetry-breaking model with a light gravitino.
Date issued
2005-02
URI
http://hdl.handle.net/1721.1/71678
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal
Physical Review D
Publisher
American Physical Society
Citation
D. Acosta et al. CDF Collaboration. "Search for anomalous production of diphoton events with missing transverse energy at CDF and limits on gauge-mediated supersymmetry-breaking models" Physical Review D 71, 031104(R) (2005). © 2005 The American Physical Society
Version: Final published version
ISSN
1550-7998
1089-4918

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