Search for supersymmetry at CDF

Conference · Sun May 01 04:00:00 EDT 1994

OSTI ID:10162566

We have conducted a search for trilepton events from supersymmetry (SUSY) in p{bar p} collisions at {radical}s = 1.8 TeV. In the Supersymmetric Standard Model (MSSM), trilepton events are expected from chargino-neutralino ({tilde {chi}}{sub 1}{sup {plus_minus}}{tilde {chi}}{sub 2}{sup {minus}0}) pair production, with subsequent decay into leptons. In all possible combinations of electron and muon channels in 19 pb{sup {minus}1} data, we observe no events which pass our trilepton selection criteria. Employing the GUT hypothesis within the framework of the MSSM, our preliminary excludes M({tilde {chi}}{sub 1}{sup {plus_minus}}) <46 GeV/c{sup 2} c{sup 2} for {minus}500 < {mu} < {minus}400 GeV, 2.0 < tan({beta}) < 15.0, and M({tilde q}) = 1.2 {times} M({tilde g}).

• Research Organization: Fermi National Accelerator Lab., Batavia, IL (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States); National Science Foundation, Washington, DC (United States); Istituto Nazionale di Fisica Nucleare, Rome (Italy); Ministry of Education, Science and Culture (Japan); Natural Sciences and Engineering Research Council of Canada, Ottawa, ON (Canada); National Science Council, Taipei (Taiwan, Province of China); Sloan (Alfred P.) Foundation, New York, NY (United States); Alexander von Humboldt-Stiftung, Bonn (Germany)
• DOE Contract Number: AC02-76CH03000
• OSTI ID: 10162566
• Report Number(s): FNAL/C--94/149-E; CONF-940722--6; ON: DE94014264
• Country of Publication: United States
• Language: English

Related Subjects

662120
662210
662340
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BRANCHING RATIO
FERMILAB COLLIDER DETECTOR
GRAND UNIFIED THEORY
HADRON INTERACTIONS
LEPTONIC DECAY
LEPTONS
PAIR PRODUCTION
PROTON-ANTIPROTON INTERACTIONS
SPARTICLES
STANDARD MODEL
SUPERSYMMETRY
SYMMETRY
CONSERVATION LAWS
CURRENTS AND THEIR PROPERTIES
UNIFIED THEORIES AND MODELS