High Energy Seminar Announcement Prof. Javier Ferrandis UC Berkeley " Supersymmetry breaking as the origin of flavor" Date: Tuesday, February 15, 2005 416 Physics Time: 4:10 pm. Abstract: We present an effective flavor model for the radiative generation of fermion masses and mixings based on a SU(5)XU(2) symmetry. We argue that the original source of flavor breaking resides in the soft supersymmetry breaking sector. Flavor violation would be transmitted radiatively, generating fermion Yukawa couplings at low energy, through finite supersymmetric threshold corrections. We will show that this model allow us to fit the fermion mass ratios and CKM matrix elements. The flavor and SUSY CP-problems are amelliorated through an approximate radiative alignment between the Yukawa and the soft supersymmetry breaking sector, which helps to overcome the present experimental constraints. We will argue that this scenario can account for some of the recently discovered patterns between dimensionless fermion mass ratios and CKM elements

E-Mail: ferrandis@mac.com
Web Page: www.berkeley.edu