Recent theoretical developments in CP violation

Abstract

We review recent suggestions for testing through B decays the flavor structure of CP violation in the Standard Model. Relative signs of CP asymmetries in U-spin related processes can by themselves test the Kobayashi-Maskawa mechanism in a crude manner. Ratios of charge-averaged decay rates and certain CP asymmetries may constrain tightly the weak phases $\gamma ={\varphi }_3$ and $\alpha ={\varphi }_2$.

Comments: 6 pages, talk at BCP4, Ise-Shima, Japan, February 19-23, 2001