Comment on "The MSR Mass and the ${\cal O}(\Lambda_{\rm QCD})$ Renormalon Sum Rule"

TL;DR

This paper critically examines previous research on the MSR mass and renormalon sum rule, comparing it with earlier results and questioning some of the original claims.

Contribution

It provides a critical analysis of prior findings on the MSR mass and renormalon sum rule, highlighting discrepancies and clarifying the results.

Findings

Identifies inconsistencies in previous claims

Reconciles earlier results with new analysis

Questions the validity of some conclusions

Abstract

In this note we confront the research conducted in \cite{Hoang:2017suc} with results previously obtained by the author, and critically examine some of their claimed findings.