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Title: Search for Chargino-Neutralino Associated Production at the Fermilab Tevatron Collider

Search for Chargino-Neutralino Associated Production at the Fermilab Tevatron Collider We have searched in p{bar p} collisions at {radical}(s) =1.8 TeV for events with three charged leptons and missing transverse energy. In the minimal supersymmetric standard model, we expect trilepton events from chargino-neutralino ({tilde {chi}}{sup {plus_minus}}{sub 1}{tilde {chi}}{sup 0}{sub 2}) pair production, with subsequent decay into leptons. We observe no candidate e{sup +}e{sup {minus}}e{sup {plus_minus}}, e{sup +}e{sup {minus}}{mu}{sup {plus_minus}}, e{sup {plus_minus}}{mu}{sup +}{mu}{sup {minus}}, or {mu}{sup +}{mu}{sup {minus}}{mu}{sup {plus_minus} } events in 106 pb{sup {minus}1} integrated luminosity. We present limits on the sum of the branching ratios times cross section for the four channels: {sigma}{sub {tilde {chi}}{sup {plus_minus}}{sub 1}{tilde {chi}}{sup 0 }{sub 2}}B({tilde {chi}}{sup {plus_minus}}{sub 1}{tilde {chi}}{sup 0}{sub 2}{r_arrow}3{ell}+X){lt}0.34 pb , M{sub {tilde {chi}}{sup {plus_minus}}{sub 1}}{gt}81.5 GeV/c{sup 2} , and M{sub {tilde {chi}}{sup 0}{sub 2 }}{gt}82.2 GeV /c{sup 2} for tan{beta}=2 , {mu}={minus}600 GeV/c{sup 2} , and M{sub {tilde q}}=M{sub {tilde g} } . {copyright} {ital 1998} {ital The American Physical Society}
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Publication Date:
OSTI Identifier:656280
Resource Type:Journal Article
Data Type:
Resource Relation:Journal Name: Physical Review Letters; Journal Volume: 80; Journal Issue: 24; Other Information: PBD: Jun 1998
Country of Publication:United States
Language:English
Subject: 66 PHYSICS; PROTON-ANTIPROTON INTERACTIONS; TEV RANGE; LEPTONS; CHARGED PARTICLES; TRANSVERSE ENERGY; SUPERSYMMETRY; STANDARD MODEL; NEUTRAL PARTICLES; SPARTICLES; PAIR PRODUCTION; BRANCHING RATIO; CROSS SECTIONS; LUMINOSITY; FERMILAB TEVATRON