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arXiv 2205.04889hep-ph
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DGLAP改进饱和度模型中的色偶极截面

Color dipole cross section in the DGLAP improved saturation model

G. R. Boroun

摘要:

我们表明,几何标度的偶极子截面可以解释使用标准的DGMENTARY微扰演化。DGstrom改进的饱和度模型,由于拉普拉斯变换方法被认为是在LO和NNLO近似从实验数据依赖于一个Froissart-bounded参数化的$F_{2}(x,Q^{2})$。这些结果与Golec-Biernat-W $\ddot{\mathrm{u}}$ sthoff(GBW)模型在考虑粲质量的宽运动学区域$rQ_{s}$的结果是一致的。给出了$σ_{\mathrm{dip}}(x,r)/σ_{0}$和$σ_{\mathrm{dip}}(rQ_{s})/σ_{0}$的成功描述。

英文摘要:

We show that the geometric scaling of the dipole cross section can be explained using standard DGLAP perturbative evolution. The DGLAP improved saturation model due to the Laplace transforms method is considered at LO and NNLO approximations from the experimental data by relying on a Froissart-bounded parametrization of $F_{2}(x,Q^{2})$. These results are comparable with Golec-Biernat-W$\ddot{\mathrm{u}}$sthoff (GBW) model in a wide kinematic region $rQ_{s}$ which takes into account charm mass. The successful description of $σ_{\mathrm{dip}}(x,r)/σ_{0}$ and $σ_{\mathrm{dip}}(rQ_{s})/σ_{0}$ are presented.

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