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arXiv 1412.4591hep-phnucl-th
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Husimi分布在核子层析成像中的应用

Use of the Husimi distribution for nucleon tomography

Yoshikazu Hagiwara, Yoshitaka Hatta

摘要:

在核子结构的背景下,维格纳分布通常被用来可视化核子内部夸克和胶子的相空间分布。然而,维格纳分布不允许概率解释,因为它取负值。为了追求QCD中的正相空间分布,我们引入了Husimi分布,并通过一个简单的单圈例子展示了它的优点。我们还评论了一个可能的连接到饱和物理的半经典方法在小- $x$。

英文摘要:

In the context of nucleon structure, the Wigner distribution has been commonly used to visualize the phase-space distribution of quarks and gluons inside the nucleon. However, the Wigner distribution does not allow for a probabilistic interpretation because it takes negative values. In pursuit of a positive phase-space distribution in QCD, we introduce the Husimi distribution and demonstrate its advantages via a simple one-loop example. We also comment on a possible connection to the semiclassical approach to saturation physics at small-$x$.

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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