Search for the Trilepton Signature from the Associated Production of SUSY Chi_1^(+-) Chi_2^0 Gauginos

TL;DR

This paper reports a search for supersymmetric gaugino pairs producing a trilepton signature at Fermilab, setting limits on production cross sections but finding no evidence of such events in the data.

Contribution

First search for the trilepton signature from Chi_1^(+-) Chi_2^0 production at Fermilab's Tevatron, providing new limits within minimal supersymmetric models.

Findings

No evidence of trilepton events was observed.

Limits on production cross section times branching fraction were established.

Data constrains supersymmetric model parameters.

Abstract

We report on a search for the trilepton signature from the associated production of supersymmetric gaugino pairs, Chi_1^(+-) Chi_2^0, within the context of minimal supersymmetric models that conserve R-parity. This search uses 95 pb^-1 of data taken with the \D0 detector at Fermilab's Tevatron collider at \sqrt{s} = 1.8 TeV. No evidence of a trilepton signature has been found, and a limit on the production cross section times branching fraction to trileptons as a function of Chi_1^(+-) mass is given.