Summary
The investigation described aimed at finding any possible modifications in the relative frequency ratios of the different kinds of decay modes of positive K-mesons as a consequence of nuclear interactions. It has further been investigated whether a considerable number of the heavy mesons originating from nuclear interactions of K-mesons have a mean life substantially shorter than that observed in attenuation experiments. The negative results of our experiment together with other experimental data recently obtained seem to create difficulties for some of the theories on the properties of the :- and θ-particles.
Riassunto
In questo lavoro si cerca di mettere in luce una eventuale modificazione tra i rapporti dei diversi modi di decadimento dei mesoni K positivi in conseguenza di una interazione nucleare. Si cerca inoltre di stabilire se per effetto della interazione abbiano origine talvolta mesoni pesanti di vita media sostanzialmente più breve di quella osservata nelle esperienze di attenuazione. II risultato negativo di questa ricerca, insieme ad altri dati oggi noti, permette di infirmare alcune delle teorie che cercano di spiegare il comportamento del doppietto di particelle τ e θ.
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References
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On leave from Padua University.
On leave from the Argentine Comision Nacional de la Energia Atomica.
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Biswas, N.N., Ceccarelli-Fabbeichesi, L., Ceccarelli, M. et al. Decay modes and mean life of scattered K+-mesons. Nuovo Cim 4, 631–636 (1956). https://doi.org/10.1007/BF02745387
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DOI: https://doi.org/10.1007/BF02745387