https://doi.org/10.1140/epjc/s10052-008-0619-1
Regular Article - Theoretical Physics
Weak decays of J/ψ: the non-leptonic case
1
Institute of High Energy Physics, P.O. Box 918(4), Beijing, 100049, P.R. China
2
Department of Physics, Nankai University, Tianjin, 300071, P.R. China
* e-mail: lucd@ihep.ac.cn
Received:
26
February
2008
Revised:
14
April
2008
Published online:
17
May
2008
In our previous study, we calculated the transition form factors of J/ψ→D(*) (s) using the QCD sum rules. Based on the factorization approximation, the form factors obtained can be applied to evaluate the weak non-leptonic decay rates of J/ψ→D(*) (s)+M, where M stands for a light pseudoscalar or vector meson. We predict that the branching ratio for inclusive non-leptonic two-body weak decays of J/ψ, which are realized via the spectator mechanism, can be as large as 1.3×10-8; in particular, the branching ratio of J/ψ→D*± s+ρ∓ can reach 5.3×10-9. Such values will be marginally accessed by the ability of BESIII, which will begin running very soon.
© Springer-Verlag , 2008
