Supersymmetric renormalisation group fixed points and third generation fermion mass predictions
- Glasgow Univ. (United Kingdom). Dept. of Physics and Astronomy
- Argonne National Lab., IL (United States)
We present a supersymmetric renormalization group fixed point determination of the third generation fermion masses, in which the large mass ratio between the top and bottom quarks is attributed to a hierarchy in the vacuum expectation values of the two Higgs doublets. Above a supersymmetry breaking scale, M{sub s}, we use the minimal supersymmetric standard model with a transition at M{sub s} to the standard model with only one Higgs- doublet effective. The mass predictions result from renormalization group evolution of large Yukawa couplings at M{sub x} {approximately} 1016 GeV. Averaging over a wide range of these couplings, not subject to any symmetry requirements, gives m{sub t} = 184.3{plus_minus}6.8 GeV, m{sub b} = 4.07{plus_minus}0.33 GeV, m{sub {tau}} = 1.78{plus_minus}0.33 GeV and a light Higgs mass m{sub h}o = 121.8{plus_minus}4.3 GeV for M{sub s} = 1 TeV and {alpha}{sub s} (M{sub z}) = 0.125.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States); Science and Engineering Research Council, Swindon (United Kingdom)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 10141928
- Report Number(s):
- ANL/HEP/PR-92-62; ON: DE94009780; IN: GUTPA--92/09/1; TRN: 94:007580
- Resource Relation:
- Other Information: PBD: Sep 1992
- Country of Publication:
- United States
- Language:
- English
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