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...they headed a team that found the long-sought antiprotons, key particles of the stranger-than-fiction world of antimatter (TIME, Oct. 31, 1955 et seq.). Antiprotons, which the Segre-Chamberlain team identified in a beam of subatomic debris created by Berkeley's 6.2-billion-volt bevatron, have the mass of ordinary protons but carry negative electric charges instead of positive charges. When a proton hits an antiproton, they annihilate each other, both turning into a powerful flash of gamma-ray energy...

Author: /time Magazine | Title: Science: 1959 Nobelmen | 11/9/1959 | See Source »

Chamberlain modestly disclaimed full credit for his work. "Dr. Segre and I received great assistance from other people at the California Bevatron. The prize is an honor for the whole laboratory...

Author: By Claude E. Welch jr., | Title: Visiting Professor Receives Nobel Prize | 10/27/1959 | See Source »

Chamberlain and Segre in 1955 created anti-protons in the powerful Bevatron atom smasher at the University of California's radiation laboratory in Livermore, Cal. These particles closely resemble protons, but carry negative charges...

Author: NO WRITER ATTRIBUTED | Title: Chamberlain May Obtain Nobel Prize | 10/26/1959 | See Source »

...packets of matter created when high-energy protons hit protons at rest. Since each particle is presumed to have its "anti" counterpart, scientists have long been looking for anti-lambda. Faint traces of the elusive particle showed last year on photographic plates exposed to the 6 billion-volt Berkeley Bevatron, but the plates were too small to tell much of the anti-lambda story...

Author: /time Magazine | Title: Science: Secret Uncovered | 8/3/1959 | See Source »

...bubble-chamber picture (see cut), an antiproton from the Bevatron enters at bottom and hits a proton (1): out of the collision come one lambda and one anti-lambda particle. Since both are neutral electrically, they leave no tracks in the liquid hydrogen, but after a short, invisible career, each decays into track-leaving particles by which it can be identified. The lambda ( 2) turns into a proton and a negative pi meson, both of which go off the picture leaving strong curved tracks. The anti-lambda (3) turns into an antiproton and a positive pi meson. The positive...

Author: /time Magazine | Title: Science: Secret Uncovered | 8/3/1959 | See Source »

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