Minimal String Unification and Yukawa Couplings in Orbifold Models

Details Minimal String Unification and Yukawa Couplings in Orbifold Models Minimal String Unification and Yukawa Couplings in Orbifold Models

1994-06-07

arxiv.org/abs/hep-ph/9406238v1

Int.J.Mod.Phys. A10 (1995) 1393-1412

Physics

High Energy Physics

High Energy Physics - Phenomenology

26 pages, KANAZAWA-94-10, Latex file

Scientific paper

We study the minimal supersymmetric standard model derived from $Z_N \times Z_M$ orbifold models. Moduli dependent threshold corrections of the gauge couplings are investigated to explain the measured values of the coupling constants. Also we study Yukawa couplings of the models. We find that the $Z_2 \times Z_6'$, $Z_2\times Z_6$, $Z_3 \times Z_6$ and $Z_6 \times Z_6$ orbifold models have the possibility to derive Yukawa couplings for the second and third generations as well as the measured gauge coupling constants. Allowed models are shown explicitly by combinations of modular weights for the matter fields.

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