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On the renormalization of the axial vector β-decay coupling

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Il Nuovo Cimento (1955-1965)

Summary

A formula expressing the ratiog A/gv in β-decay on the basis of equality of the corresponding bare coupling constants is proposed and proved in perturbation theory with cut-off, provided electromagnetic interactions are neglected. The physical background of a formula of this type is discussed and illustrated by comparison with recent work byGoldberger andTreiman on π-μ decay.

Riassunto

Si propone, e si dimostra in teoria delle perturbazioni con cut-off, una formula che dà il rapportog A/gV nel decadimento β ove si postuli l’eguaglianza delle corrispondenti costanti d’accoppiamento nude, purchè si trascurino le interazioni elettromagnetiche. Si discutono i fondamenti fisici di una formula di questo tipo e si illustrano confrontandoli con recenti lavori diGoldberger eTreiman sul decadimento π-μ.

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References

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Authors and Affiliations

  1. Max-Planck-Institut für Physik, München

    K. Symanzik

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  1. K. Symanzik
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Symanzik, K. On the renormalization of the axial vector β-decay coupling. Nuovo Cim 11, 269–277 (1959). https://doi.org/10.1007/BF02859720

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  • DOI: https://doi.org/10.1007/BF02859720

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