QCD行波现象学再探
QCD traveling waves phenomenology revisited
摘要：
在本文中，我们审查和更新的Amaral-Gay Ducati-Betemps-Soyez饱和模型，通过测试它对最近的H1-ZEUS组合数据的深度非弹性散射，包括重夸克的偶极振幅。我们得到，这个模型，这是基于Balitsky-Kovchegov方程的行波解，并建立在动量空间框架，产生非常准确的描述的约化截面，$σ_{r}(x,y,Q^{2})$，以及DIS结构功能，如$F_{2}(x,Q^{2})$和$F_{L}(x,Q^{2})$，都在HERA测量。此外，它还提供了小- $x$和$Q^{2}\lesssim 60$ GeV $^{2}$的重夸克结构函数$F_{2}^{cc}$和$F_{2}^{bb}$的良好描述.我们还使用改进后的模型来预测在不久的将来在LHeC测量的结构功能。
英文摘要：
In this paper we review and update the Amaral-Gay Ducati-Betemps-Soyez saturation model, by testing it against the recent H1-ZEUS combined data on deep inelastic scattering, including heavy quarks in the dipole amplitude. We obtain that this model, which is based on traveling wave solutions of the Balitsky-Kovchegov equation and built in the momentum space framework, yields very accurate descriptions of the reduced cross section, $σ_{r}(x,y,Q^{2})$, as well as DIS structure functions such as $F_{2}(x,Q^{2})$ and $F_{L}(x,Q^{2})$, all measured at HERA. Additionally, it provides good descriptions of heavy quark structure functions, $F_{2}^{cc}$ and $F_{2}^{bb}$ at small-$x$ and $Q^{2}\lesssim 60$ GeV$^{2}$. We also use the improved model to make predictions for structure functions to be measured in the near future at LHeC.
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