物理区域Mellin-Barnes积分的数值积分

Proceedings of Loops and Legs in Quantum Field Theory — PoS(LL2018) Pub Date : 2018-10-02 DOI:10.22323/1.303.0046

J. Usovitsch, I. Dubovyk, T. Riemann

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引用次数: 15

摘要

我们介绍了在物理区域中处理melin - barnes积分的技术，这些积分是在计算z -玻色子共振中赝观测值的电弱双环修正的费曼积分时产生的。

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MBnumerics: Numerical integration of Mellin-Barnes integrals in physical regions

We introduce techniques to treat numerically Mellin-Barnes integrals in physical regions, which arise in the need of the computation of Feynman integrals for the electroweak two-loop corrections to the pseudo observables at the Z-boson resonance.

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来源期刊

Proceedings of Loops and Legs in Quantum Field Theory — PoS(LL2018)

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