arXiv:hep-ph/0108094·v2·High Energy Physics — Phenomenology
Anomalies and Fermion Content of Grand Unified Theories in Extra Dimensions
Nicolas Borghini🇧🇪 · Yves Gouverneur🇧🇪 · Michel H.G. Tytgat🇧🇪
Abstract
The restrictions imposed by anomaly cancellation on the chiral fermion content of nonsupersymmetric gauge theories based on various groups are studied in spacetime dimension D=6, 8, and 10. In particular, we show that the only mathematically consistent chiral SU(5) theory in D=6 contains three nonidentical generations.
Comments: 15 pages, revtex. v2: references added to match published version