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Nobel Prizes and Laureates

Nobel Prizes and Laureates

The Nobel Prize in Physics 1936
Victor F. Hess, Carl D. Anderson

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Carl D. Anderson - Facts

Carl David Anderson

Carl David Anderson

Born: 3 September 1905, New York, NY, USA

Died: 11 January 1991, San Marino, CA, USA

Affiliation at the time of the award: California Institute of Technology (Caltech), Pasadena, CA, USA

Prize motivation: "for his discovery of the positron"

Field: particle physics

Prize share: 1/2

Discovered the Positron

In developing quantum mechanical theory, Paul Dirac predicted that all matter has a kind of mirror image - antimatter. A particle and its antiparticle, if charged, should have opposite charges. By studying the tracks of cosmic ray particles in a cloud chamber, in 1932 Carl Anderson discovered a positively-charged particle with a mass seemingly equal to that of an electron. Carl Anderson's particle was the first antiparticle proven by experiment and was named a "positron".

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