Study on the radiative decays of B mesons in the multiscale walking technicolor model

We calculate PGB (pseudo-Goldstone boson) corrections to the decays B --> X (s)gamma and B --> K*gamma in the MWTCM (multiscale walking technicolor mod el). The presence of PGBs in the MWTCM leads to large enhancements in the r ates of B --> X(s)gamma and B --> K*gamma. But these results are in conflic t with the recent CLEO data on the branching ratios BR(B --> X(s)gamma) and BR(B --> K*gamma). If topcolor is further introduced, the calculated resul ts in the topcolor assisted MWTCM can be suppressed and be in agreement wit h the CLEO data for a certain range of parameters. We also estimate the bra nching ratio BR(B --> X(s)g) in the topcolor assisted MWTCM, and this estim ate is roughly one order higher than that in the standard model.