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Search for associated production of charginos and neutralinos in the trilepton final state using 2.3 fb**-1 of data.

Research output: Contribution to journalJournal article

Published

Journal publication date14/09/2009
JournalPhysics Letters B
Journal number1
Volume680
Number of pages10
Pages34-43
Original languageEnglish

Abstract

We report the results of a search for associated production of charginos and neutralinos using a data set corresponding to an integrated luminosity of 2.3 fb−1 collected with the DØ experiment during Run II of the Tevatron proton–antiproton collider. Final states containing three charged leptons and missing transverse energy are probed for a signal from supersymmetry with four dedicated trilepton event selections. No evidence for a signal is observed, and we set limits on the product of production cross section and leptonic branching fraction. Within minimal supergravity, these limits translate into bounds on m0 and m1/2 that are well beyond existing limits.