论文标题
彩色玻璃冷凝水方法中的软波梅隆
Soft Pomeron in the Colour Glass Condensate approach
论文作者
论文摘要
在本文中，我们建议采用一种新方法来实现软pomeron的结构：基于$ t $ - 通道一级性，我们通过$ 1/q_s（y）$（$ q_s（y）$的均为饱和度量的小阶段的偶极子的相互作用，我们表达了软pomeron的交换。因此，可以表明，软进程中的典型距离是小$ r \ sim 1/q_s \ lb \ h y \ rb $，其中$ y \，= \，ln s $。确定散射幅度的能量依赖性与$ q^2_s \ lb \ h y \ rb \ rb \ propto \，\ exp \ lb \hλ\，y \ rb $，$λ\ y \λ\近似\，0.2 $与Phemomenology Donn permonology一致。我们证明，饱和模型可以描述$σ_{tot}，σ_{el}，σ_{diff} $和$ b_ {el} $的实验数据。因此，我们的方法是一个很好的第一个近似值，可以在坚实的理论基础上开始讨论CGC方法中的软过程。
In this paper we suggest a new approach to the structure of the soft Pomeron: based on the $t$-channel unitarity, we expressed the exchange of the soft Pomeron through the interaction of the dipole of small size of the order of $1/Q_s(Y)$ ($Q_s(Y)$ is the saturation momentum) with the hadrons. Therefore, it is shown that the typical distances in soft processes are small $r \sim 1/Q_s\Lb \h Y \Rb $, where $Y \,=\,ln s$. The saturation momentum, which determines the energy dependence of the scattering amplitude is proportional to $ Q^2_s\Lb \h Y \Rb \propto\,\exp\Lb\h λ\,Y\Rb$, with $λ\approx\,0.2$, and this behaviour is in perfect agreement with phenomenological Donnachie-Landshoff Pomeron. We demonstrate that the saturation models could describe the experimental data for $σ_{tot},σ_{el},σ_{diff} $ and $B_{el}$. Hence our approach is a good first approximation to start discussion of the soft processes in CGC approach on the solid theoretical basis.
