Anderson, Carl D.

Anderson, Carl D. (David) (1905–91) physicist; born in New York City. He taught and performed research at the California Institute of Technology (1930–77). In 1932 he discovered the positron, for which he received the 1936 Nobel Prize (jointly with Victor Hess). In 1937, he and S. H. Neddermeyer announced their discovery of intermediate-mass subatomic particles called mesons (now muons).