Supersymmetry dileptons and trileptons at the Fermilab Tevatron

Journal Article · Sat Jul 01 04:00:00 EDT 1995 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.52.142· OSTI ID:69084

Lopez, J L; Nanopoulos, D V; Wang, X; Zichichi, A ^[1]

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1. Center for Theoretical Physics, Department of Physics, Texas A&M University, College Station, Texas 77843-4242 (United States)

We consider the production of supersymmetry neutralinos and charginos in {ital p{bar p}} collisions at the Fermilab Tevatron, and their subsequent decay via hadronically quiet dileptons and trileptons. We perform our computations in the context of a variety of supergravity models, including generic four-parameter supergravity models, the minimal SU(5) supergravity model, and SU(5){times}U(1) supergravity with string-inspired two- and one-parameter moduli and dilaton scenarios. Our results are contrasted with estimated experimental sensitivities for dileptons and trileptons for integrated luminosities of 100 pb{sup {minus}1} and 1 fb{sup {minus}1}, which should be available in the short and long terms. We find that the dilepton mode is a needed complement to the trilepton signal when the latter is suppressed by small neutralino leptonic branching ratios. The estimated reaches in chargino masses can be as large as 100 (150) GeV for 100 pb{sup {minus}1} (1 fb{sup {minus}1}). We also discuss the task left for CERN LEP II once the Tevatron has completed its short-term search for dilepton and trilepton production.

• Research Organization: Texas A&M Research Foundation
• DOE Contract Number: FG05-91ER40633
• OSTI ID: 69084
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 1 Vol. 52; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BRANCHING RATIO
CHARGED PARTICLES
FERMILAB TEVATRON
LEPTONS
LUMINOSITY
NEUTRINOS
PROTON-ANTIPROTON INTERACTIONS
SENSITIVITY
SU-5 GROUPS
SUPERGRAVITY
SUPERSYMMETRY
U-1 GROUPS