The Matter and the Pseudoscalar Densities in Lattice QCD

TL;DR

This paper computes matter and pseudoscalar densities within hadrons using lattice QCD, comparing different density distributions across various hadrons and quark configurations to understand their internal structure.

Contribution

It introduces gauge-invariant equal-time correlation functions to analyze matter and pseudoscalar densities in hadrons, comparing quenched and dynamical quark theories.

Findings

Charge and matter density distributions differ across hadrons.

Densities vary between quenched and dynamical quark simulations.

Results provide insights into hadron internal structure.

Abstract

The matter and the pseudoscalar densities inside a hadron are calculated via gauge-invariant equal-time correlation functions. A comparison is made between the charge charge and the matter density distributions for the pion, the rho, the nucleon and the $\Delta^+$ within the quenched theory, and with two flavours of dynamical quarks.