论文标题
BGK饱和模型中的颜色偶极子横截面的未集成的Gluon分布
Unintegrated gluon distributions from the color dipole cross section in the BGK saturation model
论文作者
论文摘要
我们从颜色偶极子截面的参数化开始，评估了质子的不整合性gluon分布，包括DGLAP演化和饱和效应。为此，我们执行$σ（x，r）/α（r）$的傅立叶贝塞尔变换。在胶子的巨大横向动量下，我们将所谓的分布与共线胶子分布的对数衍生物相匹配。我们通过计算质子结构函数$ f_l（x，q^2）$来查看我们的方法。
We evaluate the unintegrated gluon distribution of the proton starting from a parametrization of the color dipole cross section including DGLAP evolution and saturation effects. To this end, we perform the Fourier-Bessel transform of $σ(x,r)/α(r)$. At large transverse momentum of gluons we match the so-obtained distribution to the logarithmic derivative of the collinear gluon distribution. We check our approach by calculating the proton structure function $F_L(x,Q^2)$ finding good agreement with HERA data.
