Some Characteristic Parameters of Proton from the Bag Model

TL;DR

This paper models the proton's mass as static energy from quarks and gluons using the bag model, showing good agreement with QCD results when treating the proton as a thermal equilibrium system.

Contribution

It applies the bag model to calculate proton parameters, demonstrating consistency with QCD by considering the proton as a thermal system of quarks and gluons.

Findings

Calculated temperature matches QCD estimates

Proton radius aligns with experimental data

Bag constant values are consistent with theoretical expectations

Abstract

We treat the mass of a proton as the total static energy which can be separated into two parts that come from the contribution of quarks and gluons respectively. We adopt the essential of the bag model of hadron to discuss the structure of a proton and find that the calculated temperature, proton radius, the bag constant are compare well with QCD results if a proton is a thermal equilibrium system of quarks and gluons.