论文标题

重新归一化组的结构功能改进了小$ x $ Evolution

Structure functions from renormalization group improved small $x$ evolution

论文作者

Li, Wanchen, Stasto, Anna M.

论文摘要

我们对HERA的结构功能进行拟合$ f_2 $数据,包括由于小$ x $重新召集的条款。求解了不整合的Gluon密度的方程式,以前在重新归一化组中建立了改进的小$ x $框架。我们发现结构函数$ f_2 $及其符合符合$ f_2^c $的很好描述。发现所产生的未整合的Gluon密度与基于文献中可用的类似方法的计算一致,仅稍高的截距值。

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.

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