Download or read book CP Violation in the D0 -] Pi+ Pi- Decay at CDF. written by and published by . This book was released on 2010 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report a measurement of the CP violating asymmetry in D° →??− decays using approximately 215,000 decays reconstructed in about 5.94 fb−1 of CDF data. We use the strong D*+ → D°?+ decay ('D* tag') to identify the flavor of the charmed meson at production time and exploit CP-conserving strong c{bar c} pair-production in p{bar p} collisions. Higher statistic samples of Cabibbo-favored D° → K−?+ decays with and without D* tag are used to highly suppress systematic uncertainties due to detector effects. The result, A{sub CP}(D° →?+?−) = [0.22 ± 0.24 (stat.) ± 0.11 (syst.)]%, is the world's most precise measurement to date and it is fully consistent with no CP violation.