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Microscopic HFB+QRPA predictions of dipole strength for astrophysics applications

S. Goriely·E. Khan·M. Samyn
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Abstract

Large-scale QRPA calculations of the E1 strength are performed on top of HFB calculations in order to derive the radiative neutron capture cross sections for the whole nuclear chart. The spreading width of the GDR is taken into account by analogy with the second-RPA (SRPA) method. The accuracy of HFB+QRPA model based on various Skyrme forces with different pairing prescription and parameterization is analyzed. It is shown that the present model allows to constrain the effective nucleon-nucleon interaction with the GDR data and to provide quantitative predictions of dipole strengths.

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S. Goriely, E. Khan, M. Samyn. 2003-06-02. Microscopic HFB+QRPA predictions of dipole strength for astrophysics applications. https://doi.org/10.1016/j.nuclphysa.2004.04.105

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