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arXiv 1301.6887hep-phhep-th
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对软胶子和引力子的新认识

New insights into soft gluons and gravitons

C. D. White

摘要:

在QCD中胶子辐射的研究,在小(“软”)动量的限制,仍然是一个活跃的研究领域,具有各种唯象和理论应用。软胶子辐射导致了微扰理论中的大的量子数,这些量子数必须在耦合中的所有阶次上求和,并且还控制着红外奇异性的结构。最近,新的技术和数学结构的发现,增强了我们对这些全阶性质的理解。这篇文章将回顾一些关键话题,包括QCD和引力之间的关系。

英文摘要:

The study of gluon radiation in QCD, in the limit of small ("soft") momentum, remains an active research area, with a variety of phenomenological and theoretical applications. Soft gluon emission leads to large logarithms in perturbation theory which have to be summed up to all orders in the coupling, and also governs the structure of infrared singularities. Recently, new techniques and mathematical structures have been discovered, which enhance our understanding of these all-order properties. This contribution will review a number of key topics, including the relationship between QCD and gravity.

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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