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arXiv 2604.09810hep-phhep-th
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通过协变微分进行费曼积分约简

Feynman integral reduction by covariant differentiation

Pontifícia Universidade Católica(巴西天主教 Pontifícia 大学)

Gero von Gersdorff, Vinicius Lessa

AI总结:

本文提出利用协变微分将大量费曼积分约简为主积分,方法适用于任意内部传播子质量配置,通过 Mathematica 实现了 MERLIN 算法。

摘要:

我们展示如何通过适当的协变微分将一大类费曼积分高效约简为主积分。协变微分所需的连接只需在给定拓扑下构建一次,即可适用于任何内部传播子质量配置。我们实现了该算法的 Mathematica 代码 Method for Reduction of Loop Integrals (MERLIN)。

英文摘要:

We show how a large class of Feynman integrals can be efficiently reduced to master integrals by suitable covariant differentiation on the vector space dual to the one spanned by the master integrals. The connections needed in the covariant derivatives have to be built only once for a given topology and then apply to any configuration of internal propagator masses. We implement our algorithm in the Mathematica code Method for Reduction of Loop Integrals (MERLIN).

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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