STrEAMlining EFT Matching

TL;DR

STrEAM is a Mathematica package that automates the calculation of functional supertraces in one-loop EFT matching, streamlining the process of deriving effective theories from UV models.

Contribution

It introduces an automated tool that implements the covariant derivative expansion for functional matching, reducing manual effort and potential errors.

Findings

Automates supertrace calculations for EFT matching.

Supports arbitrary order in heavy mass expansion.

Available as open-source software for the community.

Abstract

This paper presents STrEAM (SuperTrace Evaluation Automated for Matching), a Mathematica package that calculates all functional supertraces which arise when matching a generic UV model onto a relativistic Effective Field Theory (EFT) at one loop and to arbitrary order in the heavy mass expansion. STrEAM implements the covariant derivative expansion to automate the most tedious step of the streamlined functional matching prescription presented in arXiv:2011.02484 . The code and an example notebook are available at https://www.github.com/EFTMatching/STrEAM .