New bounds on the Higgs sector of minimal supersymmetric
Journal Article
·
· Modern Physics Letters A; (USA)
- Texas A and M Univ., College Station, TX (USA). Dept. of Physics
The authors examine the Higgs sector of the minimal supersymmetric extension of the standard model. The requirement of perturbative unification combined with the recent LEP data on Higgs boson searches, excludes substantial regions of parameter space. They find that only 0.42 {le} tan {beta} {approx lt} 0.76 and tan {beta}{approx gt} 1.30 are the allowed values for tan {beta} = {upsilon}{sub 2}/{upsilon}{sub 1}. They also determine the absolute lower bound on the lightest Higgs mass to be {approx}8 GeV. They conclude that improved lower bounds on the top quark mass and/or the standard model Higgs boson mass will impose yet more stringent constraints on the model. These results clearly favor tan {beta} {gt} 1, in agreement with N = 1 supergravity or superstring-inspired models.
- OSTI ID:
- 6403760
- Journal Information:
- Modern Physics Letters A; (USA), Journal Name: Modern Physics Letters A; (USA) Vol. 5:16; ISSN 0217-7323; ISSN MPLAE
- Country of Publication:
- United States
- Language:
- English
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GRAND UNIFIED THEORY
HIGGS BOSONS
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SUPERSYMMETRY
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UNIFIED GAUGE MODELS
UNIFIED-FIELD THEORIES