Results of reaction cross-section measurements on 12 C, 40 Ca, 90 Zr, and 208 Pb at incident proton energies between 80 and 180 MeV and for 58 Ni at 81 MeV are presented. The experimental procedure is described, and the results are compared with earlier measurements and predictions using macroscopic and microscopic models.
Reaction cross sections for alpha particles have been measured for C, 0, Si, Ca, Ca, 12 16 28~40 48 N Ni Sn, and Pb at 74.5, 103.2, 129.3, 159.7, and 192.7 MeV. The experimental values are found to be considerably smaller than predictions from conventional optical model calculations. PACS number(s): 25.55.Ci, 24.10.Ht
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