Direct CP Violation In Radiative B Decays

Abstract

We discuss the role of the radiative B decays $B\to X_{s/d}\gamma$ in our search for new physics focusing on the issue of direct CP violation. We discuss in some detail a SM prediction for the CP asymmetries in inclusive $b\to s/d$ transitions, namely $\mid \Delta \mathcal{B}(B\to X_s\gamma )+\Delta \mathcal{B}(B\to X_d\gamma )\mid \sim 1\cdot 10^{-9}$. Any measured value in significant deviation of this estimate would indicate new sources of CP violation beyond the CKM phase.

latex, 8 pages, 3 figures

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