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Phys. Rev. 137, B1556–B1561 (1965)

Dynamical Model for Nonleptonic Decays of Hyperons

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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

Received 19 October 1964; published in the issue dated March 1965

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 K-π 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 K20-K10 mass difference.

© 1965 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRev.137.B1556
DOI:
10.1103/PhysRev.137.B1556
PACS:

*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

See Also: J. I. Cirac and P. Zoller, Quantum Computations with Cold Trapped Ions, Phys. Rev. Lett. 74, 4091 (1995).

 
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