New concept for the pairing anti-halo effect as a localized wave packet of quasiparticles

K. Hagino, H. Sagawa

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The pairing anti-halo effect is a phenomenon that a pairing correlation suppresses a divergence of nuclear radius, which happens for single-particle states with orbital angular momenta of l=0 and 1 in the limit of vanishing binding energy. While this effect has mainly been discussed in terms of Hartree-Fock-Bogoliubov (HFB) theory, we here use a three-body model and provide its new intuitive concept as a localized wave packet for a quasiparticle, that is, a coherent superposition of a weakly bound and continuum wave functions due to a pairing interaction. We show that the one-particle density in the three-body model can be directly expressed with such quasiparticle wave functions, which have a close analog to wave functions in the HFB approximation.

Original languageEnglish
Article number024304
JournalPhysical Review C
Volume95
Issue number2
DOIs
Publication statusPublished - 2017 Feb 6

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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