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antiparticle
Introduction References & Edit History Related Topics
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electrons and positrons in a bubble chamber Computer-generated diagram showing particle tracks from a proton-antiproton collision at the center of the UA1 detector at CERN, with labeled paths for electron and positron.
Properties of Antimatter
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Italian-born physicist Dr. Enrico Fermi draws a diagram at a blackboard with mathematical equations. circa 1950.
Physics and Natural Law

antiparticle: References & Edit History

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  • The Editors of Encyclopaedia Britannica
    Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. They write new content and verify and edit content received from contributors.

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Article History

Type Description Contributor Date
Changed “travels at the speed of light” to “travels very close to the speed of light.” Feb 20, 2020
Changed “a massless uncharged particle” to “an uncharged particle.” Feb 13, 2020
Modified title of Web site: Wolfram Research - Eric Weisstein's World of Physics - Antiparticle. Oct 26, 2016
Add new Web site: ThinkQuest - Antiparticles. Sep 22, 2011
Article revised and updated. Jul 20, 2006
Article added to new online database. Jul 20, 1998
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