String no-scale supergravity model and its experimental consequences

Journal Article · Sun Oct 01 04:00:00 EDT 1995 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.52.4178· OSTI ID:249549

Lopez, J L; Nanopoulos, D V ^[1]; Zichichi, A ^[2]

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1. Department of Physics, Texas A&M University, College Station, Texas 77843-4242 (United States)
2. CERN, 1211 Geneva 23 (Switzerland)

We propose an SU(5){times}U(1) string-derived model that satisfies the constraints from no-scale supergravity. All supersymmetric observables are calculated in terms of a single parameter, with consistency determining the rest, including tan{beta}=2.2--2.3 and {ital m}{sub {ital t}}{approx}175 GeV. A small nonuniversality of the scalar masses at the string scale makes the right-handed sleptons the lightest supersymmetric particles for {ital m}{sub 1/2}{approx_gt}180 GeV. This cutoff in the parameter space entails the guaranteed discovery of charginos at the Fermilab Tevatron and CERN LEP II, and right-handed sleptons and Higgs bosons at LEP II.

• Research Organization: Texas A&M Research Foundation
• DOE Contract Number: FG05-91ER40633
• OSTI ID: 249549
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 7 Vol. 52; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
FERMILAB TEVATRON
HIGGS BOSONS
MASS
STRING MODELS
SU-5 GROUPS
SUPERGRAVITY
SUPERSYMMETRY
U-1 GROUPS