B \to K^{*} \gamma Decay within MSSM

Abstract

The paper deals with a next-to-leading order analysis of the radiative $B\to K^{\ast }\gamma$ decay. Working in a PQCD approach, we compute the correction to the essential form factor, coming from a single gluon exchange with the spectator. We investigate the supersymmetry effects on the branching ratio and direct CP asymmetry and constrain the squark mixing parameter $({\delta }_{23}^d{)}_{LR}$.

Comments: 7 pages, 3 figures, International Conference on Hadron Physics TROIA'07, Canakkale, Turkey, 30 August -- 03 September 2007