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arXiv 0904.4687hep-ph
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B介子分布振幅的重整化

Renormalization of B-meson distribution amplitudes

S. Descotes-Genon, N. Offen

摘要:

本文总结了最近在考虑三粒子贡献的情况下对二粒子B介子分布振幅$ϕ_+$和$ϕ_-$的演化核的计算。除了一些唯象的评论外,我们给出了三粒子分布振幅组合的演化核$Ψ_A-Ψ_V$,并证实了由光夸克运动方程导出的$ϕ_+$和$ϕ_-$的约束.

英文摘要:

We summarize a recent calculation of the evolution kernels of the two-particle B-meson distribution amplitudes $ϕ_+$ and $ϕ_-$ taking into account three-particle contributions. In addition to a few phenomenological comments, we give as a new result the evolution kernel of the combination of three-particle distribution amplitudes $Ψ_A-Ψ_V$ and confirm constraints on $ϕ_+$ and $ϕ_-$ derived from the light-quark equation of motion.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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