Particle Physics from D-Branes at Gepner Points

G. ALDAZABAL, E. ANDRES, J .E.. JUKNEVICH

,Rio de Janeiro, Brasil

Conferencia; Fifth International Conference on Mathematical Methods in Physics; 2006

We discuss the building of Standard-like models from configurations of stacks of orientifold  planes and D-branes on an internal space with the structure (Gepner model)c=3n×T2(3−n)/ZN, for n=1,2,3. In particular we concentrate in the, interesting, n=2 case, which would correspond to orbifolds of a K3 six dimensional manifold times a two dimensional torus.Such constructions are performed in two steps. In a first step, we consider D = 6 Type II B orientifolds on Gepner points, in the diagonal invariant case and for both, odd and even, affine levels