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首页> 外文期刊>The journal of high energy physics >Deriving canonical differential equations for Feynman integrals from a single uniform weight integral
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Deriving canonical differential equations for Feynman integrals from a single uniform weight integral

机译:从单一均匀重量积分导出Feynman积分的规范微分方程

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A bstract Differential equations are a powerful tool for evaluating Feynman integrals. Their solution is straightforward if a transformation to a canonical form is found. In this paper, we present an algorithm for finding such a transformation. This novel technique is based on a method due to H?schele et al. and relies only on the knowledge of a single integral of uniform transcendental weight. As a corollary, the algorithm can also be used to test the uniform transcendentality of a given integral. We discuss the application to several cutting-edge examples, including non-planar four-loop HQET and non-planar two-loop five-point integrals. A Mathematica implementation of our algorithm is made available together with this paper.
机译:Bstract微分方程是评估Feynman Integrats的强大工具。 如果发现对规范形式的转换,它们的解决方案很简单。 在本文中,我们提出了一种寻找这种变换的算法。 这种新颖技术基于H = Schele等人引起的方法。 并且仅依赖于单一整体的均匀超趋势的知识。 作为推论,算法还可用于测试给定积分的均匀超现性。 我们将应用程序讨论到几个尖端示例,包括非平面四环HQET和非平面两环五点积分。 我们的算法的Mathematica实现是用本文提供的。

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