Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2008-08-18
Phys.Rev.Lett.101:251801,2008
Physics
High Energy Physics
High Energy Physics - Experiment
7 pages, 3 figures, submitted to Phys. Rev. Lett; minor corrections, slight updates to figures; length reduced for PRL submiss
Scientific paper
10.1103/PhysRevLett.101.251801
We use the three lepton and missing energy "trilepton" signature to search for chargino-neutralino production with 2.0 inverse femtobarns of integrated luminosity collected by the CDF II experiment at the Tevatron ppbar 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^2 for a specific choice of parameters.
Aaltonen Timo
CDF Collaboration
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