Strongly damped nuclear collisions: zero or first sound ?
arXiv:nucl-th/0001016 · doi:10.1103/PhysRevC.61.064614
Abstract
The relaxation of the collective quadrupole motion in the initial stage of a central heavy ion collision at beam energies $E_{lab}=5\div20$ AMeV is studied within a microscopic kinetic transport model. The damping rate is shown to be a non-monotonic function of E_{lab} for a given pair of colliding nuclei. This fact is interpreted as a manifestation of the zero-to-first sound transition in a finite nuclear system.
15 pages, 4 figures