Search for R-parity violating supersymmetry via the LLE-bar couplings λ121, λ122 or λ133 in pp-bar collisions at s=1.96 TeV

A search for gaugino pair production with a trilepton signature in the framework of R-parity violating supersymmetry via the couplings λ121, λ122, or λ133 is presented. The data, corresponding to an integrated luminosity of L∼360 pb-1, were collected from April 2002 to August 2004 with the D at detector at the Fermilab Tevatron Collider, at a center-of-mass energy of s=1.96 TeV. This analysis considers final states with three charged leptons with the flavor combinations ee-bar , μμ-bar, and eeτ. No evidence for supersymmetry is found and limits at the 95% confidence level are set on the gaugino pair production cross section and lower bounds on the masses of the lightest neutralino and chargino are derived in two supersymmetric models