Total Energy Dependence of Angular Distributions of IMFs Produced in Proton and Heavy-Ion Induced Target Multifragmentation Reactions at around 10 GeV Original Research Article

We have extended our investigations on nuclear multifragmentations induced by GeV-energy light projectiles using light heavy-ion beams ( 16O, 20Ne and 28Si) provided from the Heavy-Ion Medical Accelerator in Chiba (HIMAC) at the National Institute for Radi- ological Science (NIRS). At a total beam energy of 8 GeV we found there are noticeable differences in spectrum shapes of Intermediate-Mass Fragment (IMF) and their magni- tudes depending upon the projectile mass, but all of their angular distributions clearly exhibit the existence of sideward-peaked components, indicating fragment formations are mainly governed by a total energy of the projectile, not by a incident energy per nucleon.