Grand unification of flavor by orbifold twisting $Z_2$ and $Z_2\times Z_2^{\prime }$

Abstract

The grand unification of flavor(GUF) in extra dimensions is discussed. After reviewing the old GUF, I present a GUF model SU(7) in 5D with the recently popular field theoretic orbifold compactification.

Comments: LaTeX file of 6 pages. Talk presented at The 1st International Conference On String Phenomenology, 6-11 July 2002, Oxford, England