Weak decays of $J/ψ$: the non-leptonic case

Details Weak decays of $J/ψ$: the non-leptonic case Weak decays of $J/ψ$: the non-leptonic case

2008-02-20

arxiv.org/abs/0802.2762v1

Eur.Phys.J.C55:607-613,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, revTex4, 1 figure

Scientific paper

10.1140/epjc/s10052-008-0619-1

In our previous study, we calculated the transition from factors of $J/\psi\to D^{(*)}_{(s)}$ using the QCD sum rules. Based on the factorization approximation, the obtained form factors can be applied to evaluate the weak non-leptonic decay rates of $J/\psi\to D^{(*)}_{(s)}+M$, 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 $J/\psi$ which are realized via the spectator mechanism, can be as large as $1.3 \times 10^{-8}$, in particular, the branching ratio of $J/\psi\to D^{*\pm}_s+\rho^\mp$ can reach $5.3 \times 10^{-9}$. Such values will be marginally accessed by the ability of BESIII which will begin running very soon.

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