Analysis of 405-Mev Proton and 222-Mev Negative Pion Stars

Abstract
An analysis is carried out of star formation in emulsion by 405-Mev protons and 222-Mev negative pions produced in the University of Chicago 450-Mev synchrocyclotron. A comparison of the proton stars with a Monte Carlo calculation is made. The results indicate that the cascade mechanism is important in these stars, but that present evaporation theories cannot completely explain the decay of the residual nucleus. Pion and proton stars of almost the same total excitation have quite different characteristics.