期刊
PHYSICAL REVIEW C
卷 84, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.84.064602
关键词
-
资金
- Spanish Ministerio de Ciencia e Innovacion
- European regional development fund (FEDER) [FPA2009-07653, FIS2008-04189]
- Spanish Consolider-Ingenio Programme CPAN [CSD2007-00042]
- Junta de Andalucia [P07-FQM-02894, FQM160]
- Spanish Ministerio de Ciencia e Innovacion and the Italian I.N.F.N. [AIC10-D-000590]
We study heavy-ion inelastic scattering processes in neutron-rich nuclei including the full response to the different multipolarities. Among these we focus in particular on the excitation of low-lying dipole states commonly associated to the pygmy dipole resonance. The multipole response is described within the Hartree-Fock plus RPA formalism with Skyrme interaction. We show how the combined information from reactions processes involving the Coulomb and different mixtures of isoscalar and isovector nuclear interactions can provide a clue to reveal the characteristic features of these states. We have performed calculation for the excitation of Sn-132 generated in the reactions with He-4, Ca-40, and Ca-48 at several incident energies, as well as for the system O-17 + Pb-208. Our results suggest that the investigation of the PDR states can be better carried out at low incident energies (below 50 MeV/nucleon). In fact, at these energies the PDR peak is relatively stronger than the giant dipole resonance (GDR) one and the narrow width of the low-lying quadrupole and octupole states should not blur its presence.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据