https://doi.org/10.1140/epjc/s2005-02453-0
Theoretical Physics
Study of B c → D π in the perturbative QCD approach
1
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: chengjf@mail.ihep.ac.cn
Received:
22
September
2005
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
