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The π+-mesonic decays of hypernuclei

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Il Nuovo Cimento A (1965-1970)

Summary

In a sample of approximately 11 000 hypernuclei obtained from K-meson captures at rest in nuclear emulsion, eleven examples of the π+-mesonic decay of hypernuclei have been observed. From the ten which are attributed to the decay of4HeΛ, a value of (9±3)% is obtained forR, the ratio of π+ to π mesonic decays for this hypernucleus. This result is larger than both that previously found experimentally and that predicted theoretically.

Riassunto

In un campione di circa 11 000 ipernuclei ottenuti da catture di mesoni K in quiete nell’emulsione nucleare, si sono osservati 11 esempi di decadimento π+-mesonico di ipernuclei. Dai dieci che sono attribuiti al decadimento di4HeΛ, si ottiene perR, rapporto fra i decadimenti mesonici π+ e π di questo ipernucleo, un valore di (9±3)%. Questo risultato è maggiore sia di quello precedente trovato sperimentalmente che di quello predetto teoricamente.

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Traduzione a cura della Redazione.

Chercheur agréé de l’Institut Interuniversitaire des Sciences Nucléaires

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Mayeur, C., Sacton, J., Vilain, P. et al. The π+-mesonic decays of hypernuclei. Nuovo Cimento A (1965-1970) 44, 698–711 (1966). https://doi.org/10.1007/BF02911195

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  • DOI: https://doi.org/10.1007/BF02911195

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