Grand Unification at About 4 TeV
Abstract
Description
Use of the AdS/CFT correspondence to arrive at phenomenological gauge field theories is dicussed, focusing on the orbifolded case without supersymmetry. An abelian orbifold with the finite group $Z_{p}$ can give rise to a $G = SU(N)^p$ gauge group with chiral fermions and complex scalars in different bi-fundamental representations of $G$. The precision measurements at the $Z$ resonance suggest the values $p = 12$ and $N = 3$, and a unifications scale $M_U \sim 4$ TeV. Robustness and predictivity of such grand unification is discussed.
11 pages latex, one eps figure. Plenary Talk at SUGRA 20, Northeastern University, March 2003
11 pages latex, one eps figure. Plenary Talk at SUGRA 20, Northeastern University, March 2003