One-body dissipation and the super-viscidity of nuclei

摘要: Abstract This is a study of type fluid dynamics dominated by “one-body” dissipation mechanism expected to be relevant for an assembly particles whose mean free paths are comparable or larger than the size system. Two simple formulas derived, one process nuclear fission and other collisions. The resulting predictions, adjustable parameters, compared quantitatively with measured fission-fragment kinetic energies qualitatively nucleus-nucleus collision data. one-body concept also tested against classical quantal computer studies in deforming potential well. brings out special effects associated symmetries well points macroscopic deformations which, except super-fluidity at very low temperatures, consists smooth background (“super-viscidity” nuclei), on which superposed modifications due quantization.