Yang, Chen Ning (1922–)

Chen Ning Yang

Chen Ning Yanh is a Chinese-born American physicist who shared with Tsung Dao Lee the 1957 Nobel Prize in Physics for their studies of violations of the conservation of parity. Yang and Lee studied the decay of K-mesons, which seemed to break down in two different ways, and in 1956 they concluded that in these weak interactions (see weak force) parity need not be conserved.