Phenomenology of S sub(4) flavor symmetric extra U(1) model

We study several phenomenologies of an E sub(6)-inspired extra U(1) model with S sub(4) flavor symmetry. With the assignment of left-handed quarks and leptons to S sub(4) doublets, the supersymmetry flavor problem is softened. As the extra Higgs bosons are neutrinophilic, baryon number asymmetry in the Universe is realized by leptogenesis without causing gravitino overproduction. We find that the allowed region for the lightest chargino mass is given by 100-140 GeV, if the dark matter is a singlino-dominated neutralino whose mass is about 36 GeV.