Loop integral evaluation and asymptotic expansion with pySecDec

نویسندگان

چکیده

Abstract The evaluation of higher-loop Feynman integrals is at the core quest to reduce uncertainty theoretical predictions and match experimental data from LHC future colliders. pySecDec a program evaluate such numerically based on sector decomposition approach; its new release version 1.5 introduces features significantly improving performance: automatic adaptive weighted sums (e.g. amplitudes) asymptotic expansion in kinematic ratios. Here we briefly review both, illustrating expected performance benefits.

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ژورنال

عنوان ژورنال: Journal of physics

سال: 2023

ISSN: ['0022-3700', '1747-3721', '0368-3508', '1747-3713']

DOI: https://doi.org/10.1088/1742-6596/2438/1/012143