Summary
We assume that nonleptonic weak interactions contain a product ofSU 3octets which are the natural generalization of the octet currents in semi-leptonic interactions. If the representation 27 is suppressed, this leads to a prediction of the effective coupling in the weak nucleon-pion vertex, which contributes to nonleptonic strangeness-conserving (NLSC) weak processes. We discuss both nonderivative and derivative effective coupling. In the latter case which seems the more important one, an argument can be given that the effective parity-violating vertex coupling for the NLSC reactions, which follows from the experimental parameters of hyperon decays, is likely to be not very different for any other effective coupling.
Riassunto
Si suppone ehe le interazioni deboli non leptoniche contengano un prodotto di ottetti délia SU3, che sono la generalizzazione naturale délie eorrenti di ottetto nelle interazioni semileptoniche. Se si sopprime la rappresentazione 27, si arriva ad una predizione dell’accoppiainento effettivo nel vertice debole nucleone-pione che contribuisce ai processi deboli non leptonici che conservano la stranezza (NLSC). Si discute sia l’accoppiamento eflettivo non derivativo ehe quello derivative In quest’ultimo caso, che sembra quello più importante, si può addurre un motivo per oui l’accoppiamento di vertice eflettivo, che viola la parità per le reazioni NLSC, derivante dai parametri sperimentali dei decadimenti iperonici, verosimilmente non è molto differente per ogni altro accoppiamento effettivo.
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Kummer, W. AnSU 3 estimate of the effective nonleptonic parity-violating coupling in strangeness-conserving weak processes. Nuovo Cim 36, 884–895 (1965). https://doi.org/10.1007/BF02749790
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DOI: https://doi.org/10.1007/BF02749790