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published by the American Physical Society
Visit this site, from "Physical Review Focus," to learn about the 1932 discovery of the positive electron, or positron, the first particle of antimatter identified.  You'll see how Carl Anderson found tracks of positrons in his cosmic ray research with cloud chambers, and how he concluded that they were positive electrons. Also, you'll find out how the positron had already been predicted when Anderson found it.
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Modern Physics
- Elementary Particles
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Additional Information
This resource was a Physics To Go feature from August 1, 2006 until August 16, 2006. View the feature here!


Access Rights: Free access
Restriction: © 2006 The American Physical Society
Has a copyright or other licensing restriction.
Keywords: cloud chamber, cosmic ray, discovery, particle track, positive electron, positron
Record Creator: Metadata instance created July 28, 2006 by Ann Deml
Record Updated: Feb 16, 2014 by Ed Lee
Last Update
when Cataloged:
August 25, 2006
ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
(American Physical Society, College Park, 2006), WWW Document, (http://physics.aps.org/story/v17/st5).
AJP/PRST-PER
Antimatter: Mirror of the Universe, (American Physical Society, College Park, 2006), <http://physics.aps.org/story/v17/st5>.
APA Format
Antimatter: Mirror of the Universe. (2006, August 25). Retrieved November 27, 2014, from American Physical Society: http://physics.aps.org/story/v17/st5
Chicago Format
American Physical Society. Antimatter: Mirror of the Universe. College Park: American Physical Society, August 25, 2006. http://physics.aps.org/story/v17/st5 (accessed 27 November 2014).
MLA Format
Antimatter: Mirror of the Universe. College Park: American Physical Society, 2006. 25 Aug. 2006. 27 Nov. 2014 <http://physics.aps.org/story/v17/st5>.
BibTeX Export Format
@misc{ Title = {Antimatter: Mirror of the Universe}, Publisher = {American Physical Society}, Volume = {2014}, Number = {27 November 2014}, Month = {August 25, 2006}, Year = {2006} }
Refer Export Format

%T Antimatter: Mirror of the Universe
%D August 25, 2006
%I American Physical Society
%C College Park
%U http://physics.aps.org/story/v17/st5
%O text/html

EndNote Export Format

%0 Electronic Source
%D August 25, 2006
%T Antimatter: Mirror of the Universe
%I American Physical Society
%V 2014
%N 27 November 2014
%8 August 25, 2006
%9 text/html
%U http://physics.aps.org/story/v17/st5


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