More Supersymmetric Standard-like Models from Intersecting D6-branes on Type IIA Orientifolds

Abstract

We present new classes of supersymmetric Standard-like models from type IIA ${\text{IT}}^6/({\text{IZ}}_2\times {\text{IZ}}_2)$ orientifold with intersecting D6-branes. D6-branes can wrap general supersymmetric three-cycles of ${\text{IT}}^6={\text{IT}}^2\times {\text{IT}}^2\times {\text{IT}}^2$, and any ${\text{IT}}^2$ is allowed to be tilted. The models still suffer from additional exotics, however we obtained solutions with fewer Higgs doublets, as well as models with all three families of left-handed quarks and leptons arising from the same intersecting sector, and examples of a genuine left-right symmetric model with three copies of left-handed and right-handed families of quarks and leptons.

Comments: 16 pages, REVTEX4