Aspects of String unification

Abstract

We consider the phenomenological implications of a class of compactified string theories which naturally reproduces the flavour multiplet structure of the Standard Model. The implications for gauge unification depends on which of three possibilities is realised for obtaining light Higgs multiplets. The more conventional one leads to predictions for the gauge couplings close to that of the MSSM but with an increased value of the unification scale. The other two cases offer a mechanism for bringing the prediction for the strong coupling into agreement with the measured value while still increasing the unification scale. The various possibilities lead to different expectations for the structure of the quark masses.

15 pages, LaTeX, no figures

References in corpus (1)

• String-Unification, Universal One-Loop Corrections and Strongly Coupled Heterotic String Theory

Cited by in corpus (6)

• Yukawa couplings and fermion mass structure in F-theory GUTs
• Minimal string-scale unification of gauge couplings
• Flat directions, String Compactification and 3 Generation Models
• Scales of Gaugino Condensation and Supersymmetry Breaking in Nonstandard M-Theory Embeddings
• Prediction for ${\alpha }_3(M_z)$ in a string-inspired model
• Unifying gauge couplings at the string scale