Dynamical Model for Nonleptonic Decays of Hyperons

Riazuddin, Fayyazuddin, and A. H. Zimmerman
Phys. Rev. 137, B1556 – Published 22 March 1965
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Abstract

A dynamical model based on broken unitary symmetry is developed for nonleptonic decays of hyperons. The contributions to these decays are taken from the primary current-current interaction and from poles due to the baryons, the K meson, Y0*(1405), and the decuplet of baryon resonances (B10*). The contributions from the baryon and K-meson poles are calculated on the assumption that weak baryon-baryon and Kπ transitions transform like divergences of the relevant weak currents, which are members of octets. The contributions from poles due to Y0* and the B10* resonances must be included to explain the p-wave amplitudes. Both s- and p-wave amplitudes then satisfy the triangular relations and fit the experimental values for the signs and magnitudes. The model predicts the correct sign of the K20K10 mass difference.

  • Received 19 October 1964

DOI:https://doi.org/10.1103/PhysRev.137.B1556

©1965 American Physical Society

Authors & Affiliations

Riazuddin*

  • Department of Physics and Astronomy, University of Rochester, Rochester, New York

Fayyazuddin

  • Atomic Energy Center, Lahore, Pakistan

A. H. Zimmerman

  • Instituto de Fisica Teorica, Sao Paulo, Brazil

  • *This work was supported by the U. S. Atomic Energy Commission.
  • This work performed when the author was at Department of Physics, University of Rochester and was supported by the U. S. Atomic Energy Commission.

See Also

Quantum Computations with Cold Trapped Ions

J. I. Cirac and P. Zoller
Phys. Rev. Lett. 74, 4091 (1995)

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Issue

Vol. 137, Iss. 6B — March 1965

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