Mean-Field Description of Fusion Barriers with Skyrme's Interaction

摘要

Fusion barriers are determined in the framework of the Skyrme energy-densityfunctional together with the semi-classical approach known as the ExtendedThomas-Fermi method. The barriers obtained in this way with the Skyrmeinteraction SkM* turn out to be close to those generated by phenomenologicalmodels like those using the proximity potentials. It is also shown that thelocation and the structure of the fusion barrier in the vicinity of its maximumand beyond can be quite accurately described by a simple analytical formdepending only on the masses and the relative isospin of target and projectilenucleus.