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arXiv 1402.0178hep-ph
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从小$x$的Regge胶子密度行为分析$F_{2}$的对数斜率

Analysis of the logarithmic slope of $F_{2}$ from the Regge gluon density behavior at small $x$

G. R. Boroun

摘要:

研究了胶子分布函数Regge行为的精确性,得到了一个近似关系式,该近似关系式常用于从小$x$的胶子分布中提取结构函数的对数斜率.结果表明,Regge行为分析的结果与HERA数据相当,也优于其他方法,在不同的扩展点的胶子密度展开。对于$Q^{2}=22.4 GeV^{2}$,我们还发现,对GLR-MQ方程的胶子阴影修正很好地描述了数据的$x$依赖性。由此产生的解析表达式使我们能够预测的对数导数$\frac{{\partial}F_{2}(x,Q^{2})}{{\partial}lnQ^{2}}$和比较的结果与H1数据和QCD分析与MRST参数化输入。

英文摘要:

We study of the accuracy of the Regge behavior of the gluon distribution function for obtain an approximation relation, which is frequently used to extract the logarithmic slopes of the structure function from the gluon distribution at small $x$. We show that the Regge behavior analysis results are comparable with HERA data and also are better than other methods that expand of the gluon density at distinct points of expansion. Also we show that for $Q^{2}=22.4 GeV^{2}$, the $x$ dependence of the data is well described by gluon shadowing corrections to GLR-MQ equation. The resulting analytic expression allow us to predict the logarithmic derivative $\frac{{\partial}F_{2}(x,Q^{2})}{{\partial}lnQ^{2}}$ and to compare the results with H1 data and a QCD analysis fit with MRST parametrization input.

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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