Measuring ψ" → ρπ in e+e- experiment

被引：31
|
作者：
Wang, P
Yuan, CZ
Mo, XH
机构：
[1] Inst High Energy Phys, Beijing 100039, Peoples R China
[2] China Ctr Adv Sci & Technol, Beijing 100080, Peoples R China
来源：
PHYSICS LETTERS B | 2003年 / 574卷 / 1-2期
关键词：
D O I：
10.1016/j.physletb.2003.08.068
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In S- and D-wave mixing scheme, the branching ratio of psi'' --> rhopi is estimated. Together with the continuum cross section of rhopi estimated by form factor, the observed cross section of rhopi production at psi'' in e(+)e(-) experiment is calculated taking into account the interference effect between the resonance and continuum amplitudes and the initial state radiative correction. The behavior of the cross section reveals that the disappearance of rhopi signal just indicates the existence of the corresponding branching ratio Bpsi'' --> rhopi the order of 10(-4). (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码：41 / 46
页数：6
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