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Ω Decay in a composite-particle model

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Il Nuovo Cimento A (1965-1970)

Summary

A quasi-relativistic composite-particle model is presented which is suited for the study of the long-range behavior of the strongly bound composite system. Arguments are given to justify a particular form for the Bethe-Salpeter wave-function with emphasis placed on the treatment of the relative-energy dependence. As an application of the model, the weak decay rates of the Ω are calculated. Only one free parameter, an effective cut-off to which our results are insensitive, remains in the calculated decay amplitudes after a normalization condition on the Bethe-Salpeter wave-function is imposed.

Riassunto

Si presenta un modello di particella composta quasi relativistica che è adatto per lo studio del comportamento a lungo raggio del sistema composto fortemente legato. Si espongono le ragioni che giustificano una forma particolare della funzione d'onda di Bethe-Salpeter con particolare rilievo al trattamento della dipendenza dall'energia relative. Come applicazione del modello si calcolano i rapporti di decadimento debole dell' Ω-. Dopo aver imposto una condizione di normalizzazione alla funzione d'onda di Bethe-Salpeter nelle ampiezze di decadimento calcolate, rimane solo un parametro libero, un taglio effettivo, al quale i nostri risultati sono insensibili.

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References

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Work supported in part by the University of Wisconsin Research Committee with funds granted by the Wisconsin Alumni Research Foundation and in part by the U. S. Atomic Energy Commission under Contract No. AT (11-1)-30. (COO-30-103).

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Harte, J. Ω Decay in a composite-particle model. Nuovo Cimento A (1965-1970) 42, 316–322 (1966). https://doi.org/10.1007/BF02717922

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  • DOI: https://doi.org/10.1007/BF02717922

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