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北美退伍军人节(Veterans Day),12 日无更新
arXiv 1609.02454hep-ph
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不含DREG的NLO四维横截面

NLO cross sections in 4 dimensions without DREG

R. J. Hernández-Pinto, F. Driencourt-Mangin, G. Rodrigo, G. F. R. Sborlini

摘要:

在这篇综述中,我们提出了一种新的方法,计算物理截面在非线性光学精度QCD不使用标准的尺寸正则化。该算法是基于循环树对偶定理,这使我们能够获得作为相空间积分之和的循环积分,在这种方式下,转换成相空间积分的循环积分,我们提出了一种方法,以合并虚拟和真实的贡献,以找到在$d=4$时空维度的NLO观测。此外,所描述的策略用于计算$γ^*\to q\bar{q}(g)$过程。关于这个主题的更详细的讨论可以在参考文献[1]中找到。

英文摘要:

In this review, we present a new method for computing physical cross sections at NLO accuracy in QCD without using the standard Dimensional Regularisation. The algorithm is based on the Loop-Tree Duality theorem, which allow us to obtain loop integrals as a sum of phase-space integrals; in this way, transforming loop integrals into phase-space integrals, we propose a method to merge virtual and real contributions in order to find observables at NLO in $d=4$ space-time dimensions. In addition, the strategy described is used for computing the $γ^*\to q\bar{q}(g)$ process. A more detailed discussion related on this topic can be found in Ref [1].

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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