J/psi weak decays in the covariant light-front quark model
Shen, YL; Wang YM(王玉明); Wang, YM
刊名PHYSICAL REVIEW D
2008
卷号78期号:7页码:74012
学科分类Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.78.074012
通讯作者[Shen, Yue-Long] Ocean Univ China, Coll Informat Sci & Engn, Qingdao 266003, Peoples R China ; [Wang, Yu-Ming] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
文章类型Article
英文摘要In the covariant light-front quark model, we study J/psi -> D((s)) transition form factors and utilize them to evaluate the branching fractions of various J/psi weak decay channels. For the Cabbibo allowed semileptonic decay modes J/psi -> D(s)l nu, the predicted branching ratios are at the order of 10(-10), which may be marginally measured at BESIII. The results for the semileptonic decay modes presented here are about 2-8 times larger than those calculated in the QCD sum rules approach, which is mainly due to the different treatment of nonperturbative QCD dynamics between these two approaches. Furthermore, we also give a rough estimation of the nonleptonic modes within the framework of the factorization approach, whose branching fraction numbers can be as large as 10(-9) and are consistent with that obtained in the QCD sum rules within the theoretical uncertainties.
类目[WOS]Astronomy & Astrophysics ; Physics, Particles & Fields
研究领域[WOS]Astronomy & Astrophysics ; Physics
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语种英语
WOS记录号WOS:000260574800048
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240782
专题中国科学院高能物理研究所_理论物理室_期刊论文
作者单位中国科学院高能物理研究所
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Shen, YL,Wang YM,Wang, YM. J/psi weak decays in the covariant light-front quark model[J]. PHYSICAL REVIEW D,2008,78(7):74012.
APA Shen, YL,王玉明,&Wang, YM.(2008).J/psi weak decays in the covariant light-front quark model.PHYSICAL REVIEW D,78(7),74012.
MLA Shen, YL,et al."J/psi weak decays in the covariant light-front quark model".PHYSICAL REVIEW D 78.7(2008):74012.
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