Particle-particle correlation studies for the system 14N + 159Tb at 10 and 12 MeV/ A

Abstract

Energy and angular correlations of p, n and α-particles in coincidence with projectile-like fragments have been studied for the reaction 14N + 159Tb at 10 and 12 MeV/ A. The measurements involved in-plane, and at one energy also out-of-plane, correlations. Position-sensitive detectors were employed to investigate sequential ejectile decays. The correlations indicate the presence of at least two processes: (a) formation in a binary process of an excited fragment that decays sequentially by light particle emission and (b) emission of a fast light particle at an early stage of the interaction. The second is characteristic of an “uncorrelated” process that can be described by a factorisation prescription. For the heavier fragments, the first process is associated with the quasielastic component while the second component corresponds to inelastic events.