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Pion介子分布函数

Aug 10, 2022, 4:20 PM
20m
Oral report 强子物理与味物理 Parallel Session VI (2):Hadron and Flavor Physics

Speaker

Prof. Lei Chang (Nankai Univ)

Description

在量子色动力学框架下存在一个有效的跑动耦合常数,它制约着强子分布函数随能标的演化,并在所有的阶次上保持成立。由此,我们指出在强相互作用系统中存在一个独特的强子能标,在这个能标下,强子动量完全由价夸克携带,并且给出在该能标下分布函数相应Mellin矩的上下限。通过分析当前格点QCD关于moments的计算结果,发现格点QCD均自洽落在该上下限内,并由此可以参数无关的预言Pion介子中价夸克、胶子及海夸克的分布函数。

Primary author

Prof. Lei Chang (Nankai Univ)

Presentation materials

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