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Search for Supersymmetry in pp Collisions at {radical}(s)=1.96 TeV Using the Trilepton Signature for Chargino-Neutralino Production

Journal Article · · Physical Review Letters
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  1. Division of High Energy Physics, Department of Physics, University of Helsinki and Helsinki Institute of Physics, FIN-00014, Helsinki (Finland)
  2. Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637 (United States)
We use the three lepton and missing energy trilepton signature to search for chargino-neutralino production with 2.0 fb{sup -1} of integrated luminosity collected by the CDF II experiment at the Tevatron pp collider. We expect an excess of approximately 11 supersymmetric events for a choice of parameters of the mSUGRA model, but our observation of 7 events is consistent with the standard model expectation of 6.4 events. We constrain the mSUGRA model of supersymmetry and rule out chargino masses up to 145 GeV/c{sup 2} for a specific choice of parameters.
OSTI ID:
21180020
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 25 Vol. 101; ISSN 0031-9007; ISSN PRLTAO
Country of Publication:
United States
Language:
English