Photon polarization in $B\to K_{\mathrm{res}}\gamma$

Abstract

In this talk, I introduce recently proposed method for measuring the photon polarization in $B\to K_{\mathrm{res}}\gamma$. It is also shown that anomalous right-handed top couplings can severely affect the photon polarization without spoiling the well measured branching ratio of $B\to X_s\gamma$. Estimated number of $B$ mesons needed for measuring the photon polarization is already within the reach of current $B$ factories.

arXiv comment10 pages, Contribution to the Proceedings of the 2nd International Conferenceon Flavor Physics (ICFP 2003), KIAS, Seoul, Korea, 6-11 Oct. 2003