2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/42041We investigate flavor physics at present and future B factories in order to distinguish supersymmetric models. We evaluate CP asymmetries in various B decay modes, Delta M(Bd), Delta M(Bs), and epsilon_K in three supersymmetric models, i.e. the minimal supergravity, the SU(5) SUSY GUT with right handed neutrinos, and a supersymmetric model with U(2) flavor symmetry. The allowed regions of Delta M(Bs)/Delta M(Bd) and CP asymmetries in B to J/psi K_S and b to s gamma are different for the three models so that it is possible to distinguish the three models by precise determinations of these observables in near future experiments.Talk given by T. Shindou at the 3rd Workshop on Higher Luminosity B Factory, August 6--7, 2002, Shonan Village, JapanHigh Energy Physics - Phenomenologytext