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Phys. Rev. Lett. 99, 191806 (2007) [7 pages]

Search for Chargino-Neutralino Production in pp̅ Collisions at s=1.96  TeV

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T. Aaltonen et al. CDF Collaboration
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Received 17 July 2007; published 9 November 2007

We present a search for associated production of the chargino and neutralino supersymmetric particles using up to 1.1  fb-1 of integrated luminosity collected by the CDF II experiment at the Tevatron pp̅ collider at s=1.96  TeV. We analyze events with a large transverse momentum imbalance and either three charged leptons or two charged leptons of the same electric charge. The numbers of observed events are consistent with standard model expectations. Upper limits on the production cross section are derived in different theoretical models.

© 2007 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.99.191806
DOI:
10.1103/PhysRevLett.99.191806
PACS:
14.80.Ly, 12.60.Jv, 13.85.Rm