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hep-ph2024
Semi-automatic Calculations of Multi-loop Feynman Amplitudes with AmpRed
Wen Chen
We present a Mathematica package AmpRed for the semi-automatic calculations of multi-loop Feynman amplitudes with high efficiency and precision. AmpRed implements the methods of in…
hep-ph2024★ 2 cited
Unregulated Divergences of Feynman Integrals
Wen Chen
Feynman integrals can be expanded asymptotically with respect to some small parameters at the integrand level, a technique known as the expansion by regions. A naive expansion by r…