Possible large phase in ψ(2S)→1-0- decays -: art. no. 057502

被引：31
|
作者：
Wang, P [1 ]
Yuan, CZ
Mo, XH
机构：
[1] Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China
[2] China Ctr Adv Sci & Technol, World Lab, Beijing 100080, Peoples R China
来源：
PHYSICAL REVIEW D | 2004年 / 69卷 / 05期
关键词：
D O I：
10.1103/PhysRevD.69.057502
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The strong and electromagnetic amplitudes are analyzed on the basis of the measurements of J/psi,psi(2S)-->1(-)0(-) in e(+)e(-) experiments. The currently available experimental information is revised with the inclusion of the contribution from e(+)e(-)-->gamma(*)-->1(-)0(-). The study shows that a large phase around -90degrees between the strong and electromagnetic amplitudes could not be ruled out by the experimental data for psi(2S).
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页数：4
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