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arXiv 1012.4948hep-ph
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次首阶QCD计算的另一种减法格式

An alternative subtraction scheme for next-to-leading order QCD calculations

Cheng-Han Chung, Michael Krämer, Tania Robens

摘要:

我们提出了一个新的次首阶QCD计算的减法方案。我们的计划是基于动量映射和分裂函数的背景下,一个改进的部分子淋浴配方。与标准方案相比,新方案的特点是减法项的数量明显减少,有利于非线性光学计算与部分子簇射(包括量子干涉)的匹配。我们提供了动量映射和减法项的公式,并提出了一个详细的比较与Catani-Seymour偶极子减法的各种2 -> 2散射过程。

英文摘要:

We propose a new subtraction scheme for next-to-leading order QCD calculations. Our scheme is based on the momentum mapping and on the splitting functions derived in the context of an improved parton shower formulation. Compared to standard schemes, the new scheme features a significantly smaller number of subtraction terms and facilitates the matching of NLO calculations with parton showers including quantum interference. We provide formulae for the momentum mapping and the subtraction terms, and present a detailed comparison with the Catani-Seymour dipole subtraction for a variety of 2 -> 2 scattering processes.

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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