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GUTs and String-GUTs

Abdel Pérez-Lorenzana, William A. Ponce

hep-pharXiv:hep-ph/9911540

Abstract

We look for a connection between string theories and Grand Unified Theories (GUTs), with the aim to look for new insights in the existing four dimensional string-GUT problems. We argue that the construction of consistent string-GUT models could require the use of non canonical affine levels. We list the most common level values related to realistic GUTs.

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