Theoretical Aspects of $b\to s\gamma$ Transitions

Abstract

In this talk some of the theoretical aspects of $b\to s\gamma$ transitions are discussed. The focus is on inclusive decays, since these can be computed more reliably. Topics covered are (1) perturbative QCD corrections, (2) non-perturbative contributions and (3) effects of ``new physics'' in these decays.

Comments: 15 pages, 6 figures, Talk given at the BCP4 conference, Feb. 18-23, 2001, Ise Shima, Japan; three references added