Neutral B flavor tagging for the measurement of mixing-induced CP violation at Belle
/ Authors
H. Kakuno, K. Hara, B. Casey, Kai-Feng Chen, H. Hamasaki, M. Hazumi, T. Iijima, N. Katayama, T. Okabe, Y. Sakai
and 6 more authors
K. Sumisawa, J. Suzuki, T. Tomura, K. Ueno, C. Wang, Y. Watanabe
/ Abstract
We describe a flavor tagging algorithm used in measurements of the CP violation parameter sin2φ1 at the Belle experiment. Efficiencies and wrong tag fractions are evaluated using flavor-specific B meson decays into hadronic and semileptonic modes. We achieve a total effective efficiency of 28 .8 ± 0.6%.
Journal: Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment