Gluino-cascade-decay signatures at the Fermilab Tevatron collider

Journal Article · Thu Feb 01 00:00:00 EST 1990 · Physical Review, D (Particles Fields); (USA)

DOI:https://doi.org/10.1103/PhysRevD.41.906· OSTI ID:7102957

Baer, H ^[1]; Tata, X ^[2]; Woodside, J ^[3]

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1. Physics Department, Florida State University, Tallahassee, Florida 32306 (USA)
2. Department of Physics and Astronomy, University of Hawaii, Honolulu, Hawaii 96822 (USA)
3. Physics Department, Oklahoma State University, Stillwater, Oklahoma 74078 (USA)

As the search for gluinos is extended to higher masses, the gluino cascade decays through lighter gaugino species can no longer be neglected. We compare gluino-cascade-decay signatures with signatures from direct gluino decay to the lightest supersymmetric particle assumed to be massless at the Fermilab Tevatron collider, assuming {ital m}{sub {tilde {ital g}}} {lt}m{sub {tilde q}}. Cascade decays yield a softer missing-{ital p}{sub {ital T}} ({ital p-slash}{sub {ital T}}) spectrum which reduces the {ital p-slash}{sub {ital T}} cross section by a factor of 2--3 for {ital m}{sub {tilde {ital g}}}=100--150 GeV. However, new signatures characteristic of the cascade appear in the 0, 1, and 2 lepton plus jets plus {ital p}{sub {ital T}} channels. We examine these signatures and compare with dominant standard-model backgrounds.

• OSTI ID: 7102957
• Journal Information: Physical Review, D (Particles Fields); (USA), Vol. 41:3; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
GLUONS
DECAY
SUPERSYMMETRY
FERMILAB TEVATRON
HADRON-HADRON INTERACTIONS
JET MODEL
MASSLESS PARTICLES
PAIR PRODUCTION
QUARKS
STANDARD MODEL
SUPERGRAVITY
YUKAWA POTENTIAL
ACCELERATORS
BOSONS
CYCLIC ACCELERATORS
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
INTERACTIONS
MATHEMATICAL MODELS
NUCLEAR POTENTIAL
PARTICLE INTERACTIONS
PARTICLE MODELS
POSTULATED PARTICLES
POTENTIALS
SYMMETRY
SYNCHROTRONS
UNIFIED GAUGE MODELS
UNIFIED-FIELD THEORIES
645300* - High Energy Physics- Particle Invariance Principles & Symmetries
645203 - High Energy Physics- Particle Interactions & Properties-Theoretical- Weak Interactions & Properties