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

Authors

V. M. Abazov, Joint Institute for Nuclear Research, Dubna, Russia
Kenneth A. Bloom, University of Nebraska-LincolnFollow
Gregory Snow, University of Nebraska-LincolnFollow
DO Collaboration

Date of this Version

2006

Comments

Published in Physics Letters B 638 (2006) 441–449.

Abstract

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∅ 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 eel, μμl, and eeτ (l = e or μ). 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.