Pre-equilibrium description of fast light particle emission in heavy-ion reactions

Abstract

Fast light particle emissions in heavy-ion reactions are described as a pre-equilibrium process. Reactions between a “light” heavy-ion projectile and a heavy target are considered in the energy region of the incident energy / the projectile mass ⪅ 10 MeV. Calculations are carried out by an extended exciton model in which the finiteness of the time needed for the fusion process is included. The spectrum shapes of proton, alpha, deuteron and triton emissions are well explained for an example case, 14 N+ 181 Ta at 115 MeV .