Tsung Dao Lee (b.1926),Chinese-American physicist and Nobel Laureate. Lee moved to America in 1946,after winning a grant to study in Chicago. He then moved to Princeton,and later Columbia. In 1956,Lee and fellow physicist Chen Ning Yang showed that parity conservation (mirror-image symmetry) is violated in interactions involving the weak nuclear force. This won them the 1957 Nobel Prize for Physics. Lee and Yang also proposed that electron- and muon-type neutrinos are different,predicted the existence of the W boson as the carrier of the weak force,and indicated the existence of neutral weak currents. Photographed at CERN,Geneva,in 1968 | |
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