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arXiv 0812.3625hep-th
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分数阶积分(IBFE)方法在多圈费曼图中的模块化应用

Modular application of an Integration by Fractional Expansion (IBFE) method to multiloop Feynman diagrams

Ivan Gonzalez, Ivan Schmidt

摘要:

我们提出了一种替代技术评估多圈费曼图,使用积分分数展开法。在这里,我们考虑包含传播与辐射校正拓扑对应的气泡型图的递归结构的通用图。其主要思想是减少这些子图,用它们的等价多区域扩展代替它们。这种集成技术的主要优点之一是,它允许减少大量的情况下,在相同程度的困难,在无质量的情况下。

英文摘要:

We present an alternative technique for evaluating multiloop Feynman diagrams, using the integration by fractional expansion method. Here we consider generic diagrams that contain propagators with radiative corrections which topologically correspond to recursive constructions of bubble type diagrams. The main idea is to reduce these subgraphs, replacing them by their equivalent multiregion expansion. One of the main advantages of this integration technique is that it allows to reduce massive cases with the same degree of difficulty as in the massless case.

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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