"Breakthrough in Proton Radius Calculation by Theoretical Physicists"
Theoretical physicists at Johannes Gutenberg University Mainz have made significant advancements in calculating the electric charge radius of the proton, favoring a smaller value. They have also published a stable theory prediction for the magnetic charge radius of the proton. These calculations, based on quantum chromodynamics and lattice field theory, were achieved without the use of experimental data, providing further evidence that the smaller experimental value is correct. The findings contribute to the ongoing puzzle of understanding the characteristics of protons and neutron nuclei.