STrEAMlining EFT Matching
Timothy Cohen, Xiaochuan Lu, Zhengkang Zhang
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 Ref. [1]. The code and an example notebook are available at this link.
Topics & Concepts
Matching (statistics)Covariant transformationCovariant derivativeComputer scienceCode (set theory)Extension (predicate logic)Field (mathematics)AlgorithmProgramming languageComputational scienceMathematicsPure mathematicsGeometrySet (abstract data type)StatisticsParticle physics theoretical and experimental studiesQuantum Chromodynamics and Particle InteractionsHigh-Energy Particle Collisions Research