We present a certain theoretical model to describe data based on the DGLAP evolution equations at low values of x. This model is based on a hard-pomeron exchange in the next-to-next-to-leading order of the perturbative theory. The behavior of the DIS cross section ratio \(R(x,Q^{2})\) and \(F_{L}(x,Q^{2})/F_{2}(x,Q^{2})\) is studied and compared with the experimental data. These behaviors are controlled by the color dipole model bound. These results show good agreement with the DIS experimental data throughout the low values of x. The results can be applied to the LHeC region for analyses of ultra-high-energy processes.

我们提出了一个特定的理论模型来描述基于DGLAP演化方程的低x值数据。该模型基于扰动理论的倒数第二个领先顺序进行的硬波美隆交换。DIS横截面比率\（R（x，Q ^ {2}）\）和\（F_ {L}（x，Q ^ {2}）/ F_ {2}（x，Q ^ {2 }）\）进行研究，并与实验数据进行比较。这些行为由彩色偶极子模型绑定控制。这些结果表明，在x的整个低值范围内，DIS实验数据均与之吻合良好。该结果可应用于LHeC区域，用于分析超高能过程。