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Reconciling the nonrelativistic QCD prediction and the J/psi -> 3 gamma data
Feng, F; Jia Y(贾宇); 桑文龙;Jia, Y; Sang, WL
2013
发表期刊PHYSICAL REVIEW D
卷号87期号:5页码:51501
摘要It has been a long-standing problem that the rare electromagnetic decay process J/psi -> 3 gamma is plagued with both large and negative radiative and relativistic corrections. To date it remains futile to make a definite prediction to confront with the branching fraction of J/psi -> 3 gamma recently measured by the CLEO-c and BESIII collaborations. In this work, we investigate the joint perturbative and relativistic correction [i.e., the O(alpha(s)upsilon(2)) correction, where upsilon denotes the characteristic velocity of the charm quark inside the J/psi] for this decay process, which turns out to be very significant. After incorporating the contribution from this new ingredient, with the reasonable choice of the input parameters, we are able to account for the measured decay rates in a satisfactory degree. DOI: 10.1103/PhysRevD.87.051501
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.87.051501
收录类别SCI
WOS记录号WOS:000315736800001
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被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/224555
专题理论物理室
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Feng, F,Jia Y,桑文龙;Jia, Y,et al. Reconciling the nonrelativistic QCD prediction and the J/psi -> 3 gamma data[J]. PHYSICAL REVIEW D,2013,87(5):51501.
APA Feng, F,贾宇,桑文龙;Jia, Y,&Sang, WL.(2013).Reconciling the nonrelativistic QCD prediction and the J/psi -> 3 gamma data.PHYSICAL REVIEW D,87(5),51501.
MLA Feng, F,et al."Reconciling the nonrelativistic QCD prediction and the J/psi -> 3 gamma data".PHYSICAL REVIEW D 87.5(2013):51501.
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