Effects of pairing correlation on the low-lying quasiparticle resonance in neutron drip-line nuclei

We discuss the effects of pairing correlation on quasiparticle resonance. We analyze in detail how the width of the low-lying ( $E_{x}\lesssim 1$  MeV) quasiparticle resonance is governed by the pairing correlation in the neutron drip-line nuclei. We consider the ^{46}{\rm Si} + n$ system to discuss...

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Bibliographic Details
Published inProgress of theoretical and experimental physics Vol. 2016; no. 1; p. 13
Main Authors Kobayashi, Yoshihiko, Matsuo, Masayuki
Format Journal Article
LanguageEnglish
Published Oxford University Press 01.01.2016
Subjects
D27
D11
D13
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Summary:We discuss the effects of pairing correlation on quasiparticle resonance. We analyze in detail how the width of the low-lying ( $E_{x}\lesssim 1$  MeV) quasiparticle resonance is governed by the pairing correlation in the neutron drip-line nuclei. We consider the ^{46}{\rm Si} + n$ system to discuss the low-lying $p$ -wave quasiparticle resonance. Solving the Hartree–Fock–Bogoliubov equation in coordinate space with the scattering boundary condition, we calculate the phase shift, the elastic cross section, the resonance width, and the resonance energy. We find that the pairing correlation has the effect of reducing the width of the quasiparticle resonance that originates from a particle-like orbit in weakly bound nuclei.
ISSN:2050-3911
2050-3911
DOI:10.1093/ptep/ptv175