Techniques for finding supersymmetry at the SSC

Conference · Thu Oct 01 00:00:00 EDT 1987

OSTI ID:5510383

Barnett, R M; Klopfenstein, C; Wang, E; Pauss, F; Gunion, J F; Haber, H E; Baer, H; Drees, M; Tata, X; Hagiwara, K

We examine the signatures at the SSC for supersymmetry for much of the (minimal) supersymmetric model parameter space. In particular, we survey the decay modes and signatures of gluinos and squarks. Gluinos (squarks) decay to two (one) jets and a chargino or neutralino (chi-tilde). This chi-tilde may be the (stable) lightest supersymmetric particle, LSP (and lead to missing energy). Or chi-tilde may have a two-body decay to another chi-tilde plus a W, Z or Higgs boson. Finally, it may have a three-body decay to the LSP plus q anti q, e nu, ..mu..nu, ee or ..mu mu... Only for very light gluinos and squarks is the decay mode containing the LSP dominant. In fact, for gluinos and squarks over 500 GeV, the decays to W and Z bosons dominate for much of parameter space. We estimate the backgrounds for the case in which both gluinos decay to Z bosons. The decays of gluinos and squarks which go directly to the LSP lead to very large missing energy. We report the initial results of a study of the backgrounds for this process. 22 refs., 11 figs., 3 tabs.

• Research Organization: Lawrence Berkeley Lab., CA (USA); European Organization for Nuclear Research, Geneva (Switzerland); California Univ., Davis (USA). Dept. of Physics; California Univ., Santa Cruz (USA). Dept. of Physics; Florida State Univ., Tallahassee (USA). Dept. of Physics; Wisconsin Univ., Madison (USA). Dept. of Physics
• DOE Contract Number: AC03-76SF00098; AM03-76SF00010; AS03-80ER70191
• OSTI ID: 5510383
• Report Number(s): LBL-24150; CONF-870739-9; ON: DE88003869
• Resource Relation: Conference: Workshop on experiments, detectors, and experimental areas for the supercollider, Berkeley, CA, USA, 7 Jul 1987; Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
SUPERSYMMETRY
BRANCHING RATIO
CROSS SECTIONS
HIGGS BOSONS
INTERMEDIATE VECTOR BOSONS
JET MODEL
PARTICLE DECAY
SUPERCONDUCTING SUPER COLLIDER
DECAY
ELEMENTARY PARTICLES
INTERMEDIATE BOSONS
MATHEMATICAL MODELS
PARTICLE MODELS
POSTULATED PARTICLES
STORAGE RINGS
SYMMETRY
645300* - High Energy Physics- Particle Invariance Principles & Symmetries