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Antimatter: Mirror of the Universe Feature Summary

From Physics Research
The First Antiparticle
photo from Physical Review 43, 1034 (1933)

This photograph (hi-res version) provided evidence for the existence of antimatter. The curved track was made by a positron –the antiparticle of the electron--moving in a magnetic field. Note the change in curvature where the particle passed through a lead plate (seen edgewise in center). To learn more about interpreting this photo, see The First Antiparticle from Physical Review Focus. To find out more about antimatter, visit Antimatter, from CERN.
August 1, 2006 - August 16, 2006