https://doi.org/10.1140/epjc/s10052-009-0872-y
Regular Article - Theoretical Physics
Study of B c →J/ψ π, η c π decays with perturbative QCD approach
1
College of Physics and Information Engineering, Henan Normal University, Xinxiang, 453007, China
2
Theoretical Physics Center for Science Facilities, Chinese Academy of Sciences, P.O. Box 918(4), Beijing, 100049, China
3
Institute of High Energy Physics, Chinese Academy of Sciences, P.O. Box 918(4), Beijing, 100049, China
* e-mail: xxsunjf@yahoo.com.cn
Received:
20
November
2008
Revised:
17
December
2008
Published online:
7
February
2009
The B
c
→J/ψ
π, η
c
π decays are studied with the perturbative QCD approach. It is found that the form factors
and
for the B
c
→J/ψ, η
c
transitions and the branching ratios are sensitive to the parameters ω, v, f
J/ψ
and
, where ω and v are the parameters of the charmonium wave functions for a Coulomb potential and the harmonic-oscillator potential, respectively, and f
J/ψ
and
are the decay constants of the J/ψ and η
c
mesons, respectively. The large branching ratios and the clear signals of the final states make the B
c
→J/ψ
π, η
c
π decays the prospective channels for measurements at the hadron colliders.
PACS: 12.39.St – / 13.25.Hw –
© Springer-Verlag, 2009
