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

被引：42

作者：

Wang, Yu-Ming ^{[1
]}

Zou, Hao ^{[1
]}

Wei, Zheng-Tao ^{[2
]}

Li, Xue-Qian ^{[2
]}

Lue, Cai-Dian ^{[1
]}

机构：

[1] Inst High Energy Phys, Beijing 100049, Peoples R China

[2] Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China

来源：

EUROPEAN PHYSICAL JOURNAL C | 2008年 / 54卷 / 01期

关键词：

D O I：

10.1140/epjc/s10052-007-0498-x

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

Within the standard model, we investigate the semi-leptonic weak decays of J/psi. The various form factors of J/psi making the transition to a single charmed meson (D-(d,D-s)(*)) are studied in the framework of QCD sum rules. These form factors fully determine the rates of the weak semi-leptonic decays of J/psi and provide valuable information on non-perturbative QCD effects. Our results indicate that the decay rate of the semi-leptonic weak decay mode J/psi -> D-s(*)(-) + e(+) + nu(e) is at the order of 10(-10).

引用

页码：107 / 121

页数：15

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