Double charmonium production in exclusive bottomonium decays

被引：0
|
作者：
V. V. Braguta
A. K. Likhoded
A. V. Luchinsky
机构：
[1] Institute for High Energy Physics,
来源：
Physics of Atomic Nuclei | 2010年 / 73卷
关键词：
Atomic Nucleus; Selection Rule; Decay Width; Belle Collab; Quark Transverse Momentum;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Exclusive bottomonium decays leading to the production of charmonium pairs are considered. The respective decay widths are calculatedwithin the approach of line-cone expansion for the amplitude and nonrelativistic QCD. It is shown that the production of Lz ≠ 0 P-wave charmonium states is possible even in the leading-twist approximation. This means a violation of selection rules that require the suppression of such decays. The reason for this violation is discussed in detail.
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页码：1054 / 1068
页数：14
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