Search for supersymmetry at CDF

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

OSTI ID:10162566

CDF Collaboration

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. (FNAL), 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; TRN: 94:013082
• Resource Relation: Conference: 27. international conference on high energy physics,Glasgow (United Kingdom),21-27 Jul 1994; Other Information: PBD: May 1994
• Country of Publication: United States
• Language: English

Related Subjects

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