Free surface response in a finite Fermi system
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Collective vibrations in a finite Fermi system are studied within a phase space approach which is based on the Landau-Vlasov kinetic equation. The linear response theory is used and the semiclassical internal and collective response functions are evaluated with a continuous single-particle angular momentum [Formula Presented] We focus on the strength function and fragmentation width of the vibrations. We determine the contributions to the collective strength function which are associated with different values of relevant single-particle angular momentum. Applications to the nuclear isoscalar vibrations with multipolarities [Formula Presented] 2, and 3 are presented. © 1998 The American Physical Society.
author list (cited authors)
Abrosimov, V. I., Davidovskaja, O. I., Kolomietz, V. M., & Shlomo, S.