title: Yukawa interactions and supersymmetric electroweak baryogenesis.
abstract: We analyze the quantum transport equations for supersymmetric electroweak baryogenesis including previously neglected bottom and tau Yukawa interactions and show that they imply the presence of a previously unrecognized dependence of the cosmic baryon asymmetry on the spectrum of third generation quark and lepton superpartners. For fixed values of the CP-violating phases in the supersymmetric theory, the baryon asymmetry can vary in both magnitude and sign as a result of the squark and slepton mass dependence. For light, right-handed top and bottom quark superpartners, the baryon number creation can be driven primarily by interactions involving third generation leptons and their superpartners.
authors.affiliation: University of Wisconsin, Madison, Wisconsin 53706-1390, USA.
authors.forename: Daniel J H
authors.initials: DJ
authors.lastname: Chung
authors.forename: Björn
authors.initials: B
authors.lastname: Garbrecht
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Ramsey-Musolf
authors.forename: Sean
authors.initials: S
authors.lastname: Tulin