Summary
The results of a systematic scanning of nuclear emulsions flown at high altitude are presented and analyzed. It is found that at high energies the size of the target-nucleus is not of major importance with regard to the number of shower particles produced. Also, the multiplicity of mesons for α-particles is about the same as for protons. The angular distribution of shower particles in the c.m. system is described and evidence is presented for the asymmetry of mesons nucleus collisions. Finally, the elasticity of nucleon-nucleus collisions is briefly discussed.
Riassunto
Si presentano e analizzano i risultati di una ricerca sistematica eseguita su emulsioni nucleari esposte in voli a grande altezza. Si trova che alle alte energie il volume del nucleo colpito non riveste grande importanza per quanto riguarda il numero di particelle dello sciame generato. Anche la molteplicità dei mesoni prodotti è uguale sia per le particelle α che pei protoni. Si descrive la distribuzione angolare delle particelle dello sciame nel sistema del c.m. e si portano prove a sostegno dell’asimmetria delle collisioni mesoni-nucleo. Si discute infine brevemente l’elasticità delle collisioni nucleone-nucleo.
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Engler, A., Haber-Schaim, U. & Winkler, W. Nuclear collisions of high energy protons, mesons and α-particles. Nuovo Cim 12, 930–942 (1954). https://doi.org/10.1007/BF02781861
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DOI: https://doi.org/10.1007/BF02781861