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arXiv 2201.10579hep-ph
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重整化群改进的小$x$演化结构函数

Structure functions from renormalization group improved small $x$ evolution

Wanchen Li, Anna M. Stasto

摘要:

我们对来自HERA的结构函数$F_2$数据进行拟合,包括由于小$x$处的再确认而引起的项。未积分胶子密度的方程求解,以前建立的重整化群改进的小$x$框架内。我们发现结构函数$F_2$和它的魅力成分$F_2^c$的很好的描述。由此产生的未积分胶子密度被发现是一致的,在文献中可用的类似方法的基础上的计算,只有略高的截距值。

英文摘要:

We perform the fit to the structure function $F_2$ data from HERA including terms due to the resummation at small $x$. The equation for the unintegrated gluon density is solved, previously established within the renormalization group improved small $x$ framework. We find very good description of the structure function $F_2$ and its charm component $F_2^c$. The resulting unintegrated gluon density is found to be consistent with the calculations based on similar approaches available in the literature, with only slightly higher intercept value.

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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