Top-quark and Higgs-boson mass bounds from a numerical study of supersymmetric grand unified theories

Journal Article · Sun Nov 17 23:00:00 EST 1991 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.67.2933· OSTI ID:6157007

Arason, H; Castano, D; Keszthelyi, B; Mikaelian, S; Piard, E; Ramond, P; Wright, B ^[1]

---

1. Institute for Fundamental Theory, Department of Physics, University of Florida, Gainesville, Florida (USA)

We run all the couplings of the minimal supersymmetric (SUSY) extension of the standard model, taking account of the Yukawa sector. After identifying the scale at which the gauge couplings unify, we place bounds on the top-quark mass by requiring equality of the bottom-quark and {tau} Yukawa couplings at that scale. For {ital M}{sub SUSY}=1 TeV, {ital M}{sub {ital b}}=4.6 GeV, we find 139{le}{ital M}{sub {ital t}}{le}194 GeV, which remarkably satisfy the {rho}-parameter bound. Furthermore, using the minimal SUSY boundary condition on the scalar quartic coupling, we obtain bounds for the mass of the Higgs boson, 44{le}{ital M}{sub Higgs}{le}120 GeV.

• DOE Contract Number: FG05-86ER40272
• OSTI ID: 6157007
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 67:21; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

662110 -- General Theory of Particles & Fields-- Theory of Fields & Strings-- (1992-)
662120 -- General Theory of Particles & Fields-- Symmetry
Conservation Laws
Currents & Their Properties-- (1992-)
662440* -- Properties of Other Particles Including Hypothetical Particles-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COUPLING CONSTANTS
ELEMENTARY PARTICLES
ENERGY RANGE
FIELD THEORIES
GRAND UNIFIED THEORY
HIGGS BOSONS
LIE GROUPS
LIMITING VALUES
MASS
MATHEMATICAL MODELS
NUMERICAL SOLUTION
PARTICLE MODELS
POSTULATED PARTICLES
SU GROUPS
SU-2 GROUPS
SU-3 GROUPS
SUPERSYMMETRY
SYMMETRY
SYMMETRY GROUPS
TEV RANGE
TEV RANGE 01-10
TOP PARTICLES
U GROUPS
U-1 GROUPS
UNIFIED GAUGE MODELS
UNIFIED-FIELD THEORIES