NEUTRINO YUKAWA COUPLINGS AND FCNC PROCESSES IN B DECAYS IN SUSY-GUT

摘要

Flavor changing neutral current and lepton flavor violating processes are studied in the SU(5) SUSY-GUT with right-handed neutrino supermultiplets. Using input parameters motivated by neutrino oscillation, it is shown that the time-dependent CP asymmetry of 6 →sγ can be as large as 20%. We also show that the B_s-(B~-)_s mixing can be significantly different from the standard model prediction.