Dynamical origins of intermediate velocity light particles in 64Zn+58Ni at 35–79 AMeV

The averaged projected momentum per nucleon and the velocity distribution of light particles are examined in coincidence with projectile‐like fragments. A dependence of the left‐right asymmetry on the incident energy is observed for the intermediate velocity proton emission. On the contrary the asymmetry of the emission of intermediate velocity α particles shows a similar trend for all incident energies. Possible dynamical models are discussed for the emission of intermediate velocity light particles.