Deep-inelastic structure functions at two loops
Deep-inelastic structure functions at two loops
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DOI：
10.1016/s0550-3213(00)00045-6
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发表时间：
1999-12
期刊：
影响因子：
--
通讯作者：
S. Moch;J. Vermaseren
中科院分区：
文献类型：
--
作者：
S. Moch;J. Vermaseren
本文给出了结构函数F_2、F_3和F_1 ~ n在二阶修正和首扭近似下微扰QCD的Mellin矩的解析计算。我们计算了双圈对单重态和非单重态算符矩阵元的反常维数的贡献以及F2、F3和FL的双圈系数函数.我们解析地进行了Mellin逆变换，发现我们的结果与Zijlstra和货车Neerven的早期计算结果一致.
We present the analytic calculation of the Mellin moments of the structure functions F2, F3and FLin perturbative QCD up to second-order corrections and in leading twist approximation. We calculate the two-loop contributions to the anomalous dimensions of the singlet and non-singlet operator matrix elements and the two-loop coefficient functions of F2, F3and FL. We perform the inverse Mellin transformation analytically and find our results in agreement with earlier calculations in the literature by Zijlstra and van Neerven.