Download or read book Search for B --] U Transitions in B±̂ --] [K{̂u2213} Pi±̂ Pi0]_D K±̂ Decays written by and published by . This book was released on 2011 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present a study of the decays B{sup {+-}} → DK{sup {+-}} with D mesons reconstructed in the K?−?° or K−?+?° final states, where D indicates a D° or a {bar D}° meson. Using a sample of 474 million B{bar B} pairs collected with the BABAR detector at the PEP-II asymmetric-energy e+e− collider at SLAC, they measure the ratios R{sup {+-}} {triple_bond}?(B{sup {+-}}→[K{sup {-+}}?{sup {+-}}?°]{sub D}K{sup {+-}})/?(B{sup {+-}}→[K{sup {+-}}?{sup {-+}}?°]{sub D}K{sup {+-}}). They obtain R+ = (5−10{sup +12}(stat)−4{sup +2}(syst)) x 10−3 and R− = (12−10{sup +12}(stat)−5{sup +3}(syst)) x 10−3, from which they extract the upper limits at 90% probability: R+