Log-normal distribution for correlators in lattice QCD?

TL;DR

This paper investigates the distribution of hadronic correlators in lattice QCD, revealing that they often follow a log-normal distribution at intermediate time separations, which impacts data analysis methods.

Contribution

It identifies the log-normal distribution pattern in lattice QCD correlators, providing new insights into their statistical behavior at intermediate times.

Findings

Correlators exhibit log-normal distribution at intermediate times

Implications for statistical analysis of lattice QCD data

Potential improvements in data fitting techniques

Abstract

Many hadronic correlators used in spectroscopy calculations in lattice QCD simulations appear to show a log-normal distribution at intermediate time separations.