Continuum QRPA in the coordinate space representation

K. Hagino, H. Sagawa

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)

Abstract

We formulate a quasiparticle random phase approximation (QRPA) in the coordinate space representation. This model is a natural extension of the RPA model of Shlomo and Bertsch to open-shell nuclei in order to take into account pairing correlations together with the coupling to the continuum. We apply it to the 120Sn nucleus and show that low-lying excitation modes are significantly influenced by the pairing effects although the effects are marginal in the giant resonance region. The dependence of the pairing effect on the parity of low-lying collective mode is also discussed.

Original languageEnglish
Pages (from-to)82-94
Number of pages13
JournalNuclear Physics A
Volume695
Issue number1-4
DOIs
Publication statusPublished - 2001 Dec 3
Externally publishedYes

Keywords

  • 21.10.Re
  • 21.60.-n
  • 21.60.Jz
  • 23.20.-g
  • Collective excitation
  • Continuum
  • Giant resonance
  • Low-lying mode
  • Pairing
  • Random phase approximation

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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