### V-A THEORY AND THE DECAY OF THE $lambda$ HYPERONV-A THEORY AND THE DECAY OF THE $lambda$ HYPERON

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 Author Okubo, S. ♦ MArshak, R. E. ♦ Sudarshan, E. C. G. Source United States Department of Energy Office of Scientific and Technical Information Content type Text Language English
 Subject Keyword PHYSICS AND MATHEMATICS ♦ BORN APPROXIMATION ♦ BRANCHING RATIO ♦ DECAY ♦ EMISSION ♦ FERMIONS ♦ FIELD THEORY ♦ INTERACTIONS ♦ LAMBDA PARTICLES ♦ NUCLEONS ♦ PERTURBATION THEORY ♦ PIONS ♦ PIONS-MINUS ♦ PROTONS ♦ QUANTUM MECHANICS ♦ SCATTERING Abstract The decay of the 1 HNO/sub 3/. hyperon is studied within the framework of the chirality-invariant four-fermion interaction. It is shown that the branching ratio of the charged and neutral modes, the s- to p-wave emission, as well as the sign and magnitude of the asymmetry parameter of the p + The effects of /sup-/ decay mode, can be understood on the basis of the V-A theory. Improvements upon the Born approximation, using dispersion theory, indicate that these conclusions are not invalidated by taking into account the pion-nucleon interaction. (auth) ISSN 0031899X Educational Use Research Learning Resource Type Article Publisher Date 1959-02-01 Publisher Department Univ. of Rochester, N.Y. ♦ Harvard Univ., Cambridge, Mass. Journal Physical Review Volume Number 113 Organization Univ. of Rochester, N.Y. ♦ Harvard Univ., Cambridge, Mass.