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ANGTJLAR DISTRIBUTION OF THE DECAY PRODUCTS OF HYPERONS

CHEN J. M. HO T.H. SAN D. C. TZU H. Y.

ANGTJLAR DISTRIBUTION OF THE DECAY PRODUCTS OF HYPERONS

CHEN, J. M., HO, T.H., SAN, D. C., TZU, H. Y.
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  • Received Date:  07 November 1958
  • Published Online:  20 February 1959

ANGTJLAR DISTRIBUTION OF THE DECAY PRODUCTS OF HYPERONS

  • 1. 中国科学院原子能研究所

Abstract: By assuming various forms of interaction Hamiltonian the angular distribution of the decay products of spin 1/2 particle obeying the Dirac equation and that of spin 3/2 particle obeying Rarita-Schwinger equation are calculated. The ratio of the strength of parity conserving and the parity non- conserving interaction on the one hand and the asymmetry parameter α on the other hand is discussed. It is pointed out, that if the vector and pseudo-vector coupling in the universal Fermi weak interaction proposed by Feynman and Gell-Mann are exactly equal to each other, then this theory gives an asymmetry parameter α of Λ particle decay, which is consistent with the experimental result. If the ratio of the square of these two coupling constants is 1:1.55 as suggested by β-decay experiments, then the asymmetry parameter derived from this theory is -0.97, which is already on the margin of the experimental data. The angular distribution of the decay products of spin 3/2 particle obeying the Rarita-Schwinger wave equation cannot be made agree with the experimental result of the ∧ particle decay, a conclusion, which was first pointed out by Lee and Yang by using general arguments.

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