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arXiv 0807.3701hep-ph
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自动偶极子减法

Automating dipole subtraction

K. Hasegawa, S. Moch, P. Uwer

摘要:

我们报告的自动化Catani-Seymour偶极减法,这是一个通用的程序来处理实际的发射过程中的红外发散在次领先的QCD。自动化取决于三个基本步骤:创建的偶极子条款,计算的颜色链接的平方玻恩矩阵元素,和不同的螺旋度振幅的评价。这些例程已经过许多复杂过程的测试,例如实际排放过程gg --> t anti-t ggg。

英文摘要:

We report on automating the Catani-Seymour dipole subtraction which is a general procedure to treat infrared divergences in real emission processes at next-to-leading order in QCD. The automatization rests on three essential steps: the creation of the dipole terms, the calculation of the color linked squared Born matrix elements, and the evaluation of different helicity amplitudes. The routines have been tested for a number of complex processes, such as the real emission process gg --> t anti-t ggg.

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。

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