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Physics and Astronomy

Physics & Astronomy Colloquium

3:30 PM, Friday, September 9, 2011
Room 155, Chem-Phys Building

Dr. Michael Eides
Department of Physics and Astronomy
University of Kentucky

"Proton Radius Puzzle: Experiments and Theory''

Apparently discrepant results on the value of the proton radius made the proton radius the most hotly discussed topic in physics during the last year and a half. The proton radius is measured in experiments on electron-proton scattering and in Lamb shift measurements in ordinary and muonic hydrogen. I will describe experimental and theoretical problems connected with determination of the proton radius, and discuss the perspectives of resolution of the proton radius puzzle.

Refreshments will be served in CP 179 at 3:15 PM