An inspection on the Borel masses relation used in QCD sum rules

TL;DR

This paper investigates the impact of different Borel mass relations in QCD sum rules, finding that a general linear relation yields the most consistent results.

Contribution

It introduces a more general linear relation between Borel masses in QCD sum rules, improving the stability of the calculations.

Findings

A general linear relation reduces standard deviation in results

Comparison shows improved stability over usual relations

Supports using flexible relations in QCD sum rule calculations

Abstract

In this work, we studied the Borel masses relation used in QCDSR calculations. These masses are the parameters of the Borel transform used when the three point function is calculated. We analised an usual and a more general linear relations. We concluded that a general linear relation between these masses provides the best results regarding the standard deviation.