Experimental Status on the Proton Charge Radius
In this proceedings, we present the experimental status of measurements of the charge radius of the proton. Its accurate knowledge is not only important for understanding how Quantum Chromodynamics (QCD) is manifested in the non-perturbative QCD region, but also is essential for carrying out bound state Quantum Electrodynamics (QED) calculations of atomic energy levels. We discuss the methods and types of measurements performed during the last dozen of years, for determining that radius. We also discuss the current status of the proton charge radius puzzle, as well as give some details on various upcoming experiments. In the light of such new experimental results, the ultimate resolution of the radius puzzle may be addressed in the foreseeable future.
