Automatic computation of Feynman integrals containing linear propagators via auxiliary mass flow

Abstract

We proposed a recipe to systematically calculate Feynman integrals containing linear propagators using the auxiliary mass flow method. The key of the recipe is to introduce a quadratic term for each linear propagator and then using differential equations to get rid of their effects. As an application, we calculated all master integrals of vacuum integrals containing a gauge link up to four loops, and we checked the results by nontrivial dimensional recurrence relations.

Comments: We found a typographical error in our previous code, and thus numerical results in Eq. (30) and the ancillary file are updated