REvolver: Automated running and matching of couplings and masses in QCD

Abstract

In this article we present REvolver, a C++ library for renormalization group evolution and automatic flavor matching of the QCD coupling and quark masses, as well as precise conversion between various quark mass renormalization schemes. The library systematically accounts for the renormalization group evolution of low-scale short-distance masses which depend linearly on the renormalization scale and sums logarithmic terms of high and low scales that are missed by the common logarithmic renormalization scale evolution. The library can also be accessed through Mathematica and Python interfaces and provides renormalization group evolution for complex renormalization scales as well.

arXiv comment94 pages + appendices, 6 figures; v2: journal version

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• FLAG Review 2024
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• Small-momentum expansion of heavy-quark correlators in the large-${\beta }_0$ limit and ${\alpha }_s$ extractions
• Precision $e^{+}{e}^{-}$ Hemisphere Masses in the Dijet Region with Power Corrections
• Investigation of the scale dependence in the MSR and $\overline{\text{MS}}$ top quark mass schemes for the $\mathrm{t}\overline{\mathrm{t}}$ invariant mass differential cross section using LHC data
• Three-loop jet function for boosted heavy quarks
• NLO Oriented Event-Shape Distributions for Massive Quarks
• Renormalization Group Improvement and QCD Sum Rules