论文标题
sudakov效果和偶极子振幅
Sudakov effects and the dipole amplitude
论文作者
论文摘要
在这项研究中，我们将sudakov的外形归于偶极分解公式，其中前者的硬尺度由光子虚拟性$ q^2 $提供。我们获得了一个通用公式，然后将其应用于众所周知的GBW和BGK饱和模型。上述Sudakov改良模型的参数已成功拟合到HERA的$ F_2 $数据中。我们尤其观察到，将Sudakov因子纳入GBW模型之上，可以改善大于$ Q^2 $的数据的描述。
In this study we incorporate the Sudakov form factor into the dipole factorization formula, where the hard scale of the former is provided by the photon virtuality $Q^2$. We obtain a general formula which we then apply to the well-known GBW and BGK saturation models. Parameters of the above Sudakov-improved models are successfully fitted to the $F_2$ data from HERA. We observe, in particular, that inclusion of the Sudakov factor on top of the GBW model improves description of data at large $Q^2$.
