The transition form factors for semi-leptonic weak decays of $J/ψ$ in QCD sum rules

Details The transition form factors for semi-leptonic weak decays of $J/ψ$ in QCD sum rules The transition form factors for semi-leptonic weak decays of $J/ψ$ in QCD sum rules

2007-07-08

arxiv.org/abs/0707.1138v2

Eur.Phys.J.C54:107-121,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

28 pages, 6 figures, revised version to be published in Eur.Phys.J.C

Scientific paper

10.1140/epjc/s10052-007-0498-x

Within the Standard Model, we investigate the semi-leptonic weak decays of $J/\psi$. The various form factors of $J/\psi$ transiting to a single charmed meson ($D^{(*)}_{(d,s)}$) are studied in the framework of the QCD sum rules. These form factors fully determine the rates of the weak semi-leptonic decays of $J/\psi$ and provide valuable information about the non-perturbative QCD effects. Our results indicate that the decay rate of the semi-leptonic weak decay mode $J/\psi \to D^{(*)-}_{s}+e^{+}+\nu_{e}$ is at order of $10^{-10}$.

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