Comparison Study between Quantum Electrodynamics theory (QED) and Quantum Chromodynamics theory (QCD)

Abstract

In this study we calculated the correlation coefficient to solve the Klein_Gordan equation and the Dirac equation in quantum electrodynamics theory, applying timed pendent perturbation theory. The calculations show correlation coefficient are coupled in the amount and this consistent with previously known results, we conducted a comparison between Quantum Electrodynamics theory (QED) and Quantum Chromodynamics theory (QCD), we noticed that it was agreed and the differences between two theory are through charge screening in QED and QCD.