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1983199320032013202302468
Abstract: (APS)
Upper bounds on rate differences between particle and antiparticle decays of hyperons are estimated in the standard six-quark model. For each of Λ0→pπ−, Λ0→nπ0, Σ+→nπ+, Σ+→pπ0 fractional rate differences of order 10−6 are found whereas for Σ−→nπ−, Ξ−→Λπ−, and Ξ0→Λπ0 none is expected. Some other tests of CP conservation in hyperon decays relevant to left-right symmetric models are pointed out.
  • CP: violation
  • HYPERON: NONLEPTONIC DECAY
  • NONLEPTONIC DECAY: HYPERON
  • HYPERON: WIDTH
  • WIDTH: DIFFERENCE
  • QUARK: SEXTET
  • NUMERICAL CALCULATIONS
  • LAMBDA --> P PI-
  • LAMBDA --> N PI0
  • SIGMA+ --> N PI+