Mysteriously shrinking proton puzzles physicists

Saturday, April 13, 2013 - 15:00 in Physics & Chemistry

By Stephanie Pappas, LiveScienceDENVER — The size of a proton, long thought to be well-understood, may remain a mystery for a while longer, according to physicists.Speaking Saturday at the April meeting of the American Physical Society, researchers said they need more data to understand why new measurements of proton size don't match old ones."The discrepancy is rather severe," said Randolf Pohl...    

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