Similarity of Cross Sections for Peripheral Collisions at 20 MeV/Aand 2.1 GeV/A

Abstract

Peripheral collisions between ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$ and ${}_{}{}^{208}{}_{}{}^{}\mathrm{Pb}$ are investigated at a laboratory energy of 315 MeV. The relative cross sections are remarkably similar to published cross sections measured at 33.6-GeV laboratory energy. They are compared with statistical models involving dinuclear systems and projectile fragmentation.