Title :
What do we actually know on the proton radius?
Author :
Karshenboim, S.G.
Author_Institution :
D.I. Mendeleev Inst. for Metrology, St. Petersburg, Russia
Abstract :
We give a critical discussion on different ways to determine the proton charge radius. It is demonstrated that the best results of its measurement can be obtained from evaluation of the Mainz data on the electron-proton elastic scattering, but the uncertainty has to be large by factor two. A review of the hydrogen Lamb shift experiments and the radius determination from them is also presented.
Keywords :
Lamb shift; constants; electromagnetic form factors; electron-proton scattering; hydrogen neutral atoms; quantum electrodynamics; H; Lamb shift experiments; Mainz data; Rydberg constant; chiral limit; electron-proton elastic scattering; form factor; fundamental constants; lattice calculation; proton charge radius determination; uncertainty; Extrapolation; Fitting; Frequency measurement; Hydrogen; Lattices; Measurement standards; Metrology; Optical scattering; Protons; Stationary state;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1998 Conference on
Conference_Location :
Washington, DC, USA
Print_ISBN :
0-7803-5018-9
DOI :
10.1109/CPEM.1998.699795
