20 5 v 1 3 J an 1 99 5 Upper bound on the supersymmetry breaking scale in supersymmetric SU ( 5 ) model
نویسنده
چکیده
The status of coupling constant unification in standard supersymmetric SU (5) model and its extensions is discussed. Taking into account uncertainties related with the initial coupling constants and threshold corrections at the low and high scales we find that in standard supersymmetric SU (5) model the scale of the supersymmetry breaking could be up to 10 8 Gev. In the extensions of standard SU (5) model it is possible to increase the supersymmetry breaking scale up to 10 11 Gev.
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Taking into account uncertainties related with the initial coupling constants and threshold corrections at low and high scales we find that in standard supersym-metric SU (5) model the supersymmetry breaking scale could be up to 10 8 GeV.
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