Summary
The resultant momenta of 154 (Σ-π) pairs produced by K− captures in emulsion nuclei have been studied. No evidence for the existence of a sharp (Σ-π) resonance has been observed. The results seem to be in general agreement with the calculations of Adair for the distribution of the resultant (Σ-π) momentum expected from nuclear effects without any resonant interaction. The distribution of the total visible energy of the outgoing particles (T ∑+T π+T recoil) suggests that several states of the recoil are formed from K− captures in light emulsion nuclei.
Riassunto
Si sono studiati gli impulsi risultanti di 154 coppie (Σ-π) prodotte da catture di K− nei nuclei dell’emulsione. Non si sono osservate prove dell’esistenza di una netta risonanza (Σ-π). I risultati sembrano in generale accordo con i calcoli di Adair della distribuzione del momento (Σ-π) risultante previsto in base agli effetti nucleari senza interazioni risonanti. La distribuzione dell’energia visibile totale delle particelle uscenti (T ∑+T π+T rinc) suggerisce che parecchi stati del rinculo sono formati da catture di K− nei nuclei leggeri dell’emulsione.
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Ismail, A.Z.M., Lokanathan, S. & Prakash, Y. The study of (Σ-π) resonance at 1405 MeV in emulsions. Nuovo Cim 33, 25–39 (1964). https://doi.org/10.1007/BF02734059
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DOI: https://doi.org/10.1007/BF02734059