The excitation of a nucleus in a collision at intermediate energies provides an important platform for examining not only the important decay modes but also for investigating the persistence of the nuclear mean field. During the interaction of the projectile and target nuclei in a peripheral or mid-central collision, matter and energy are exchanged between the colliding partners. An excited and transiently deformed projectile-like fragment (PLF*) emerges from the collision damped from the beam velocity.  To characterize such collisions we examine the cross-bombardment reactions 124,136Xe + 112,124Sn at E/A=50 MeV. Silicon strip arrays were used to provide isotopic identification of charged particles for Z<15 along with coincident detection of neutrons via time-of-flight. Velocity damping of the PLF* is observed to be closely related to its decay and the opening of fragmentation channels. This binary and ternary decay of the excited and transiently deformed PLF* is examined within a statistical and dynamical framework.

Dynamical and statistical aspects of intermediate energy heavy-ion collisions

239th National Meeting (2010)

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