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Continuum QRPA in the coordinate space representation

✍ Scribed by K. Hagino; H. Sagawa

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
153 KB
Volume
695
Category
Article
ISSN
0375-9474

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✦ Synopsis

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 120 Sn 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.

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