Anomalies and Fermion Content of Grand Unified Theories in Extra Dimensions
Tytgat, Michel H. G.
High Energy Physics - Phenomenology
arxiv: High Energy Physics::Phenomenology | High Energy Physics::Lattice
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.