Giant dipole resonance in deformed nuclei: dependence on Skyrme forces

Details Giant dipole resonance in deformed nuclei: dependence on Skyrme forces Giant dipole resonance in deformed nuclei: dependence on Skyrme forces

2006-10-10

arxiv.org/abs/nucl-th/0610040v1

Int.J.Mod.Phys.E16:624-633,2007

Physics

Nuclear Physics

Nuclear Theory

12 pages, 3 figures

Scientific paper

10.1142/S0218301307006071

The giant dipole resonance (GDR) in deformed nuclei is analyzed using the self-consistent separable random-phase-approximation (SRPA) with Skyrme forces SkT6, SkM$^*$, SLy6 and SkI3. The deformed nuclei $^{150}$Nd and $^{238}$U are used as representative rare-earth and actinide samples. Dependencies of the dipole strength distributions on some basic characteristics of the Skyrme functional and nuclear matter properties (isoscalar and isovector effective masses, time-odd contributions) are discussed. Particular attention is paid to the fragmentation structure of the GDR strength which are shown to depend sensitively to spin-orbit intruder states with large angular momentum.

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