Sunday, March 22, 2009
Yukawa, Hideki
Japanese phyicist who studied the force holding a nucleus together. He invented a theory in which the force between protons and neutrons was medicated by a massive virtual particle of about 200 electrons masses. Yukawa also predicted K-capture, in which an electron in the lowest hydroden energy level could be absorbed by the nucleur. He received the 1949 Nobel Prize in physics for his prediction of the pion.
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