Download or read book Measurement of Branching Fractions, and CP and Isospin Asymmetries, for B --] K* Gamma written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The branching fractions of the decays B[sup 0] [yields] K*[sup 0][gamma] and B[sup +] [yields] K*[sup +][gamma] are measured using a sample of 88 x 10[sup 6] B[bar B] events collected with the BABAR detector at the PEP-II asymmetric-energy e[sup +]e[sup -] collider. They find [Beta](B[sup 0] [yields] K*[sup 0][gamma]) = (3.92 [+-] 0.20(stat.) [+-] 0.24(syst.)) x 10[sup -5], [Beta] (B[sup +] [yields] K*[sup +][gamma]) = (3.87 [+-] 0.28(stat.) [+-] 0.26(syst.)) x 10[sup -5]. The measurements also constrain the direct CP asymmetry to be -0.074