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arXiv 1709.07802hep-ph
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通过循环树对偶性的QED和QCD自能校正

QED and QCD self-energy corrections through the loop-tree duality

N. Selomit Ramírez-Uribe, Roger J. Hernández-Pinto, Germán Rodrigo

摘要:

回路树对偶(LTD)定理建立了回路对散射振幅的贡献可以通过对偶积分来计算,对偶积分是从虚图的单个切割建立的。为了建立一个完整的LTD表示的截面,并实现一个本地取消的奇异性,这是至关重要的,包括重整化自能修正的非积分形式。在本文中,我们计算了量子电动力学和量子色动力学中与自能修正相关的标量函数,并明确地提取了它们的紫外行为。

英文摘要:

The loop-tree duality (LTD) theorem establishes that loop contributions to scattering amplitudes can be computed through dual integrals, which are build from single cuts of the virtual diagrams. In order to build a complete LTD representation of a cross section and to achieve a local cancellation of singularities, it is crucial to include the renormalized self-energy corrections in an unintegrated form. In this document, we calculate the scalar functions related to the self-energy corrections in QED and QCD in the LTD formalism and extract explicitly their UV behaviour.

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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