Search for ${\tilde{W}}_{1} {\tilde{Z}}_{2}$ Production via Trilepton Final States in $p \bar{p}$ Collisions at $\sqrt{s} = 1.8$ TeV

We have searched for associated production of the lightest chargino

{\tilde{W}}_{1}

and next-to-lightest neutralino

{\tilde{Z}}_{2}

of the minimal supersymmetric standard model in

p \bar{p}

collisions at

\sqrt{s} = 1.8

TeV using the D0 detector at the Fermilab Tevatron collider. Data corresponding to an integrated luminosity of

12.5 \pm 0.7 {pb}^{- 1}

were examined for events containing three isolated leptons. No evidence for

{\tilde{W}}_{1} {\tilde{Z}}_{2}

pair production was found. Limits on

σ ({\tilde{W}}_{1} {\tilde{Z}}_{2}) B ({\tilde{W}}_{1} \to l ν {\tilde{Z}}_{1}) B ({\tilde{Z}}_{2} \to l \bar{l} {\tilde{Z}}_{1})

are presented.

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Search forW̃1Z̃2Production via Trilepton Final States inpp¯Collisions ats=1.8TeV