Bubble chamber study of unstable particle production in π⁻-p collisions at 910, 960, 1200 and 1300 MeV

Summary

Results are reported on the total and differential cross-sections for the reactions π⁻ + P →$\begin{gathered} \Lambda ^0 + \theta ^9 \hfill \\ \Sigma ^0 + \theta ^9 \hfill \\ \Sigma ^ - + {\rm K}^ + \hfill \\ \end{gathered}$ at 910, 960, 1200 and 1300 MeV using hydrogen and propane bubble chambers in a magnetic field of 13.4 kG. The chambers and their operation, as well as the method of analysis are described in detail.

Riassunto

Sono presentati i risultati sulle sezioni d’urto totali e differenziale nelle reazioni π⁻ + P →$\begin{gathered} \Lambda ^0 + \theta ^9 \hfill \\ \Sigma ^0 + \theta ^9 \hfill \\ \Sigma ^ - + {\rm K}^ + \hfill \\ \end{gathered}$ a 910, 960, 1200 e 1300 MeV, ottenuti usando camere a bolle ad idrogeno ed a propano in un campo magnetico di 13.4 kG. Viene fatta una descrizione dettagliata sia delle camere e del loro funzionamento che del metodo di analisi.