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

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  • D0 Collaboration
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<mark>Journal publication date</mark>14/09/2009
<mark>Journal</mark>Physics Letters B
Issue number1
Volume680
Number of pages10
Pages (from-to)34-43
<mark>State</mark>Published
<mark>Original language</mark>English

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.