Isotopic Spin Selection Rule in ?-Decays
- 1 August 1958
- journal article
- Published by Oxford University Press (OUP) in Progress of Theoretical Physics
- Vol. 20 (2) , 144-148
- https://doi.org/10.1143/ptp.20.144
Abstract
Use is made of the branching ratio, lifetime, and asymmetries of the angular distributions in Σ-decays to show that the selection rule |ΔI| = ½ is consistent in the decays of Σ-hyperons as well as in the Λ-decays. The invariance under time reversal is assumed, and the asymmetry parameters, the average degrees of polarization of Σ and the ratios of the coupling constants are obtained.Keywords
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