Phenomenology of S4 Flavor Symmetric extra U(1) model
Abstract
We study several phenomenologies of an E6 inspired extra U(1) model with S4 flavor symmetry. With the assignment of left-handed quarks and leptons to S4-doublet, SUSY 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.
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