The method of direct expansions of Feynman integrals

TL;DR

This paper introduces a universal method for expanding Feynman integrals, enabling the derivation of their threshold expansion, which is useful for calculations in quantum field theory.

Contribution

It presents a new universal approach for expanding Feynman integrals, including their threshold behavior, improving computational techniques in theoretical physics.

Findings

Derived threshold expansions of Feynman integrals.

Proposed a universal method applicable to various integrals.

Enhanced computational efficiency in quantum field calculations.

Abstract

The universal method of expansion of integrals is suggested. It allows in particular to derive the threshold expansion of Feynman integrals.