Uncertainties in coupling constant unification
نویسندگان
چکیده
منابع مشابه
Coupling Constant Unification in Extended SUSY Models
The unification of gauge coupling constants in the minimal supersymmetric model (MSSM) is unaffected at the one-loop level by the inclusion of additional massdegenerate SU(5) multiplets. Perturbativity puts an upper limit on the number of additional fields. We analyse the evolution of the gauge coupling constants in all models satisfying these criteria using two-loop β functions and including l...
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∗ e-mail address: [email protected]. ∗∗ e-mail address: [email protected]. ∗ ∗ ∗ e-mail address: [email protected]. Convergence of the standard model gauge coupling constants to a common value at around 2× 1016 GeV is studied in the context of orbifold theories where the modular symmetry groups for T and U moduli are broken to subgroups of PSL(2, Z). The values of the moduli required...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 1993
ISSN: 0556-2821
DOI: 10.1103/physrevd.47.4028