Summary
Nonleptonic-radiative hyperon decay—α → βγ—is studied from the point of view of current algebra and simple chiral Lagrangians. Equivalence between the approaches is shown and attempts to fit current experimental data are discussed. Predicted values in such models are found to be in apparent disagreement with present experiments.
Riassunto
Dal punto di vista dell’algebra delle correnti e delle lagrangiane chirali semplici, si studia il decadimento radiativo degli iperoni che non dà origine a leptoni — α → βγ. Si dimostra l’equivalenza fra i due metodi e si cerca di approssimare i dati sperimentali sulle correnti. I valori previsti da questi modelli risultano in apparente disaccordo con i dati sperimentali a disposizione.
Реэюме
Исходя иэ алгебры токов и простых чиральных лагранжианов, исследуется нелептонный радиационный распад гиперона а → βγ. Покаэывается зквивалентность зтих подходов и обсуждаются попытки согласовать зкспериментальные данные по алгебре токов. Обнаружено, что предскаэанные величины в таких моделях явно противоречат современным зкспериментам.
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Research supported by the Air Force Office of Scientific Research under contract AF 49 (639)-1545.
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Holstein, B.R. Chiral symmetry and nonleptonic-radiative hyperon decay. Nuov Cim A 2, 561–578 (1971). https://doi.org/10.1007/BF02736735
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DOI: https://doi.org/10.1007/BF02736735