Richter, Burton

Richter, Burton

(rĭk`tər), 1931–, American physicist, b. New York City, Ph.D. Massachusetts Institute of Technology, 1956. A professor at Stanford, Richter built a particle accelerator (Stanford Positron-Electron Asymmetric Ring) with the help of David Ritson and the support of the U.S. Atomic Energy Commission. With it he discovered a new subatomic particle called a psi-particle (now called a J/psi mesonmeson
[Gr.,=middle (i.e., middleweight)], class of elementary particles whose masses are generally between those of the lepton class of lighter particles and those of the baryon class of heavier particles. From a technical point of view mesons are strongly interacting bosons; i.
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). The same discovery was made independently and nearly simultaneously by Samuel TingTing, Samuel Chao Chung,
1936–, American physicist, b. Ann Arbor, Mich., Ph.D. Univ. of Michigan 1962. Ting was a professor at Columbia from 1965 to 1969, when he joined the faculty at the Massachusetts Institute of Technology.
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 using a different method. The two scientists were jointly awarded the 1976 Nobel Prize in Physics for their work.

Richter, Burton

 

Born Mar. 22, 1931, in New York. American physicist.

Richter graduated from the Massachusetts Institute of Technology in 1952. In 1956 he became a research associate at Stanford University’s high-energy physics laboratory; he was named a professor at the Stanford Linear Accelerator Center in 1967.

Richter’s principal works deal with particle physics. In 1974, in experiments using colliding electron-positron beams, he discovered the ψ-meson (J-meson), the first particle of a new family of mesons with a fourth (charmed) quark. He also discovered the ψ-meson and meson resonances with masses of 2.8–3.6 gigaelec-tron volts.

For his discovery of the ψ-meson, Richter received a Nobel Prize in 1976.

Richter, Burton

(1931–  ) physicist; born in New York City. Joining Stanford in 1956, he became director of its Linear Accelerator Center (1984). He received the 1976 Nobel Prize in physics (shared with simultaneous and independent codiscoverer S. C. C. Ting) for his discovery of the J/psi hadron, a new heavy elementary particle that provided experimental evidence for the existence of charmed quarks.
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