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The λ0-decay asymmetry parameter and the K-λ parity

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Il Nuovo Cimento (1955-1965)

Summary

Both the sign and magnitude of the asymmetry parameter (α) in A→ p + π- decay have been determined by means of an investiaation of the λ-decay proton scattering angle distribution in liquid helium. The best value of α is 0.66±0.20. The significance of the result in connection with the determination of the relative K-λ parity is also discussed.

Riassunto

Sono stati determinati sia il segno che il modulo del parametro di asimmetria (α) nel decadimento λ → p + π-, mediante una ricerca sulla distribuzione dell‘angolo di scattering del protone di decadimento del λ0 in elio liquido. Il miglior valore di α è 66±.20. Si discute inoltre questo risultato in relazione con la determinazione della parità relativa K-A.

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Authors and Affiliations

  1. Syracuse University, Syracuse, NY

    L. Gray, E. Harth & J. Leitner

  2. Northwestern University, Evanston, Ill.

    J. Auman, M. M. Block, R. Gessaroli, T. Kopelman & S. Ratti

  3. Università di Bologna, Bologna

    L. Grimellini, T. Kikuchi, L. Lendinara & L. Monari

Authors
  1. L. Gray
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  2. E. Harth
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  3. J. Leitner
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  4. J. Auman
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  5. M. M. Block
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  6. R. Gessaroli
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  7. T. Kopelman
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  8. S. Ratti
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  9. L. Grimellini
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  10. T. Kikuchi
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  11. L. Lendinara
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  12. L. Monari
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Additional information

This work was supported in part by the Office of Naval Research and the National Science Foundation.

On leave from the Università di Milano, N.A.T.O. Science Fellowship.

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Gray, L., Harth, E., Leitner, J. et al. The λ0-decay asymmetry parameter and the K-λ parity. Nuovo Cim 28, 179–183 (1963). https://doi.org/10.1007/BF02806060

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  • DOI: https://doi.org/10.1007/BF02806060

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