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Title: 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}
Authors:
; ; ; ; ;  [1] ; ; ; ; ;  [2] ; ; ; ; ;  [3] ; ; ;  [4] ; more »; ; ; ; ; ;  [5] ; ; ; ; ; ;  [6] ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;  [7] ; ; ; ;  [8] ; ; ; ; ; ; ; ;  [9] ; ; ;  [10] ; ; ; ; ; ; « less
  1. Argonne National Laboratory, Argonne, Illinois 60439 (United States)
  2. Istituto Nazionale di Fisica Nucleare, University of Bologna, I-40127 Bologna (Italy)
  3. Brandeis University, Waltham, Massachusetts 02254 (United States)
  4. University of California at Los Angeles, Los Angeles, California 90024 (United States)
  5. University of Chicago, Chicago, Illinois 60637 (United States)
  6. Duke University, Durham, North Carolina 27708 (United States)
  7. Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States)
  8. University of Florida, Gainesville, Florida 32611 (United States)
  9. Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati (Italy)
  10. University of Geneva, CH-1211 Geneva 4 (Switzerland)
Publication Date:
OSTI Identifier:
656280
Resource Type:
Journal Article
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