arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1005.4646hep-ph
收藏

坐标空间中软反常维数矩阵的计算

Computation of the Soft Anomalous Dimension Matrix in Coordinate Space

Alexander Mitov, George Sterman, Ilmo Sung

摘要:

完成了两圈大质量软反常维数矩阵中三部分子关联的坐标空间计算。完整的答案与以前通过不同方法发现的结果一致。重整化双圈胶子交换图的坐标空间处理以透明的方式展示了它们的色对称性。我们比较了坐标空间计算的软反常维数矩阵与有质量和无质量程函线,并检查其非均匀的极限在绝对阈值。

英文摘要:

We complete the coordinate space calculation of the three-parton correlation in the two-loop massive soft anomalous dimension matrix. The full answer agrees with the result found previously by a different approach. The coordinate space treatment of renormalized two-loop gluon exchange diagrams exhibits their color symmetries in a transparent fashion. We compare coordinate space calculations of the soft anomalous dimension matrix with massive and massless eikonal lines and examine its nonuniform limit at absolute threshold.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑