Study of B c → D π in the perturbative QCD approach
Institute of High Energy Physics, CAS, P.O. Box 918(4), 100049, Beijing, China
2 CCAST (World Laboratory), P.O. Box 8730, 100080, Beijing, China
3 Institute of High Energy Physics, CAS, P.O. Box 918(4), 100049, Beijing, China
* e-mail: firstname.lastname@example.org
Published online: 22 December 2005
We investigate the branching ratios and direct CP-asymmetries of the and decays in the PQCD approach. All the diagrams with emission topology or annihilation topology are calculated strictly. A branching ratio of 10-6 and 10-7 for and decay is predicted, respectively. Because of the different weak phase and strong phase from penguin operator and two kinds of tree operator contributions, we predict a possible large direct CP-violation: and when γ = 55°, which can be tested in the coming LHC.
© Springer-Verlag, 2006