关于GLR-MQ-ZRS方程框架下DIS结构函数的解析解
On analytical solutions of the DIS structure functions in the framework of GLR-MQ-ZRS equation
摘要:
在Gribov-Levin-Ryskin-Mueller-Qiu,Zhu-Ruan-Shen(GLR-MQ-ZRS)方程框架下,计算了深部非弹性散射(DIS)结构函数$F_2 (x,Q^2)$和$F_L (x,Q^2)$.分别在$10^{-6}\leq x \leq 10^{-2}$和$5 \leq Q^2 \leq 100\,,GeV^2$的运动学范围内研究了结构函数的$x$和$Q^2$演化。我们提出了结构函数的解析解,我们的结果是受小-x胶子的Regge行为的启发。在两种特殊情况下得到了结构函数的解:(i)将强耦合常数$α_s$视为任意常数,(ii)考虑$α_s$的$Q^2$依赖性.我们的预测结果与最新的高精度HERA数据吻合得很好。
英文摘要:
We computed the deep inelastic scattering (DIS) structure functions $F_2 (x,Q^2)$ and $F_L (x,Q^2)$ in the framework of Gribov-Levin-Ryskin-Mueller-Qiu, Zhu-Ruan-Shen (GLR-MQ-ZRS) equation. Both $x$ and $Q^2$ evolutions of the structure functions are studied in the kinematic range of $10^{-6}\leq x \leq 10^{-2}$ and $5 \leq Q^2 \leq 100\,,GeV^2$ respectively. we have suggested analytical solutions to the structure functions, our results are inspired by Regge like behaviour of gluons at small-x. The solutions of structure functions are obtained for two particular cases: (i) treating the strong coupling constant $α_s$ as an arbitrary constant, and (ii) considering the $Q^2$ dependency of $α_s$. Our predicted results are in good agreement with the latest available high precision HERA data.
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