# pySecDec: a toolbox for the numerical evaluation of multi-scale integrals

## TL;DR

pySecDec is a flexible Python-based toolbox that automates the factorization and numerical evaluation of multi-scale integrals, improving speed and usability for complex integral calculations in physics.

## Contribution

It introduces a Python modular framework and optimized C++ code for faster, more flexible numerical evaluation of multi-scale integrals, with capabilities for integration into user-specific codes.

## Key findings

- Enhanced numerical convergence speed
- Flexible Python modules for algebraic operations
- Library creation for integrand functions

## Abstract

We present pySecDec, a new version of the program SecDec, which performs the factorisation of dimensionally regulated poles in parametric integrals, and the subsequent numerical evaluation of the finite coefficients. The algebraic part of the program is now written in the form of python modules, which allow a very flexible usage. The optimization of the C++ code, generated using FORM, is improved, leading to a faster numerical convergence. The new version also creates a library of the integrand functions, such that it can be linked to user-specific codes for the evaluation of matrix elements in a way similar to analytic integral libraries.