Continuum QRPA response for deformed neutron-rich nuclei

K. Hagino, Nguyen Van Giai, H. Sagawa

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

We discuss properties of the quadrupole collective excitation of the deformed neutronrich nucleus 38Mg within the framework of quasi-particle random phase approximation (QRPA). We first solve the coupled-channels equations to obtain the single-particle levels, and construct the ground state by treating the pairing correlations in the BCS approximation. We then solve the QRPA equation using the response function formalism, by including the continuum spectra with the box dicscretization method. We show that the collectivity of the gamma vibration (the lowest Kπ = 2+ mode) is significantly enhanced if protons and neutrons have different deformations. We also discuss an attempt towards full continuum QRPA calculations for deformed nuclei.

Original languageEnglish
Pages (from-to)264-272
Number of pages9
JournalNuclear Physics A
Volume731
Issue number1-4
DOIs
Publication statusPublished - 2004 Feb 9
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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