STrEAMlining EFT Matching

Timothy Cohen, Xiaochuan Lu, Zhengkang Zhang

SciPost Phys. 10, 098 (2021) · published 3 May 2021


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 .

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