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We explore the implications of electroweak baryogenesis for future searchesfor permanent electric dipole moments in the context of the minimalsupersymmetric extension of the Standard Model (MSSM). From a cosmologicalstandpoint, we point out that regions of parameter space that over-producerelic lightest supersymmetric particles can be salvaged only by assuming adilution of the particle relic density that makes it compatible with the darkmatter density: this dilution must occur after dark matter freeze-out, whichordinarily takes place after electroweak baryogenesis, implying the same degreeof dilution for the generated baryon number density as well. We expand onprevious studies on the viable MSSM regions for baryogenesis, exploring for thefirst time an orthogonal slice of the relevant parameter space, namely the(tan\beta, m_A) plane, and the case of non-universal relative gaugino-higgsinoCP violating phases. The main result of our study is that in all cases lowerlimits on the size of the electric dipole moments exist, and are typically onthe same order, or above, the expected sensitivity of the next generation ofexperimental searches, implying that MSSM electroweak baryogenesis will be soonconclusively tested.

MSSM Baryogenesis and Electric Dipole Moments: An Update on the Phenomenology