Pairing correlations in exotic nuclei

H. Sagawa, K. Hagino

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)

Abstract

The BCS and HFB theories which can accommodate the pairing correlations in the ground states of atomic nuclei are presented. As an application of the pairing theories, we investigate the spatial extension of weakly bound Ne and C isotopes by taking into account the pairing correlation with the Hartree-Fock-Bogoliubov (HFB) method and a 3-body model, respectively. We show that the odd-even staggering in the reaction cross sections of 30,31,32Ne and 14,15,16C are successfully reproduced, and thus the staggering can be attributed to the unique role of pairing correlations in nuclei far from the stability line. A correlation between a one-neutron separation energy and the anti-halo effect is demonstrated for s- and p-waves using the HFB wave functions. We also propose effective density-dependent pairing interactions which reproduce both the neutron-neutron (nn) scattering length at zero density and the neutron pairing gap in uniform matter. Then, we apply these interactions to study pairing gaps in semi-magic finite nuclei, such as Ca, Ni, Sn and Pb isotopic chains.

Original languageEnglish
Article number012008
JournalJournal of Physics: Conference Series
Volume413
Issue number1
DOIs
Publication statusPublished - 2013
EventInternational Summer School for Advanced Studies 'Dynamics of Open Nuclear Systems', PREDEAL 2012 - Predeal, Romania
Duration: 2012 Jul 92012 Jul 20

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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