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Open Access item Search for Chargino-Neutralino Production in pp̅ Collisions at √s=1.96  TeV

Authors:Aaltonen, T.
Chuang, S. H.
Rodrigo, Teresa
Ruiz Jimeno, Alberto
Cuenca Almenar, Cristóbal
Gómez, G.
Palencia, Enrique
Cuevas, Javier
Piedra, Jonatan
Cabrera, Susana
Scodellaro, Luca
Vila, Iván
Vilar, Rocío
Casal, Bruno
Keywords:Supersymmetric partners of known particles, Supersymmetric unified models, Limits on hadron-induced production of particles (energy > 10 GeV)
Issue Date:9-Nov-2007
Publisher:American Physical Society
Citation:Physical Review Letters 99: 191806 (2007)
Abstract: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 p(p)over-bar collider at sqrt{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.
Description:7 páinas, 2 figuras, 1 tabla.-- PACS nrs.: 14.80.Ly, 12.60.Jv, 13.85.Rm.-- CDF Collaboration: et al.
Publisher version (URL):http://dx.doi.org/10.1103/PhysRevLett.99.191806
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