Download or read book Measurements of Branching Fractions in B[yields][phi]K and B[yields][phi][pi] and Search for Direct CP Violation in B[sup[+-][yields][phi]K[sup[+-]. written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present measurements of branching fractions in the b[yields] s[bar s]s penguin-dominated decays B[sup+][yields][phi]K[sup+] and B[sup 0][yields][phi]K[sup 0] in a sample of approximately 89 million B[bar B] pairs collected by the BABAR detector at the PEP-II asymmetric-energy B-meson Factory at SLAC. They determine[Beta](B[sup+][yields][phi]K[sup+])= (10.0[sub -0.8][sup+0.9][+-] 0.5) x 10[sup -6] and[Beta](B[sup 0][yields][phi]K[sup 0])= (8.4[sub -1.3][sup+1.5][+-] 0.5) x 10[sup -6]. Additionally, they measure the CP-violating charge asymmetry[Alpha][sub CP](B[sup[+-]][yields][phi]K[sup[+-]])= 0.04[+-] 0.09[+-] 0.01, with a 90% confidence-level interval of[-0.10, 0.18], and set an upper limit on the CKM- and color-suppressed decay B[sup+][yields][phi][pi][sup+], [Beta](B[sup+][yields][phi][pi][sup+])