期刊
PHYSICAL REVIEW C
卷 83, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.83.044324
关键词
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资金
- Spanish Ministerio de Ciencia e Innovacion [FPA2009-14091-C02-02, ACI2009-1007]
- Junta de Andalucia [FQM0220]
We present a technique that treats, without approximations, the continuum part of the excitation spectrum in random phase approximation calculations with finite-range interactions. The interaction used in Hartree-Fock calculations to generate the single-particle basis is also used in continuum random phase approximation calculations. We show results for electric dipole and quadrupole excitations in O-16, O-22, O-24, Ca-40, Ca-48, and Ca-52 nuclei. We compare our results with those of the traditional discrete random phase approximation, with continuum independent-particle model results, and with results obtained by a phenomenological random phase approximation approach. We study the relevance of the continuum, of the residual interaction, and of the self-consistency. We also compare our results with the available total photoabsorption cross-section data.
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