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arXiv · 0707.1138

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

Yu-Ming Wang·Hao Zou·Zheng-Tao Wei·Xue-Qian Li·Cai-Dian Lü
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Abstract

Within the Standard Model, we investigate the semi-leptonic weak decays of $J/ψ$. The various form factors of $J/ψ$ 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 $J/ψ$ and provide valuable information about the non-perturbative QCD effects. Our results indicate that the decay rate of the semi-leptonic weak decay mode $J/ψ\to D^{(*)-}_{s}+e^{+}+ν_{e}$ is at order of $10^{-10}$.

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Yu-Ming Wang, Hao Zou, Zheng-Tao Wei, Xue-Qian Li, Cai-Dian Lü. 2007-11-28. The transition form factors for semi-leptonic weak decays of $J/ψ$ in QCD sum rules. https://doi.org/10.1140/epjc%2Fs10052-007-0498-x

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