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arXiv · hep-ph/9504371

Selection Rules for Nonrenormalizable Couplings in Superstring Theories

T. Kobayashi
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Abstract

We study nonrenormalizable coupling terms in $Z_N$ orbifold models. Nontrivial selection rules of couplings are provided and cannot be understood in terms of a simple symmetry of effective field theories. We also discuss phenomenological implications of theses selection rules for the quark mass matrices.

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T. Kobayashi. 1995-04-24. Selection Rules for Nonrenormalizable Couplings in Superstring Theories. https://doi.org/10.1016/0370-2693(95)00643-y

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