论文标题
NLO中的未脱脂QED Parton分布函数
Unpolarized QED parton distribution functions in NLO
论文作者
论文摘要
在接下来的对数近似中，明确提出了用于未脱脂QED Parton分布和碎片函数的扰动溶液。详细描述了QED演化方程的迭代溶液方案。最高$ \ MATHCAL {O}（α^3l^2）$是分析计算的，其中$ l = \ ln（μ_f^2/m_e^2）$是大的对数，取决于分数能量量表$μ_f\ gg \ gg gg gg m_e $。结果与未来的高精度实验无关，并且与未来的高精度实验相关。
Perturbative solutions for unpolarized QED parton distribution and fragmentation functions are presented explicitly in the next-to-leading logarithmic approximation. The scheme of iterative solution of QED evolution equations is described in detail. Terms up to $\mathcal{O}(α^3L^2)$ are calculated analytically, where $L=\ln(μ_F^2/m_e^2)$ is the large logarithm which depends on the factorization energy scale $μ_F\gg m_e$. The results are process independent and relevant for future high-precision experiments.
