Nuclear β-decay half-lives in the relativistic point-coupling model. (22nd February 2016)

• Record Type: Journal Article
• Authors: Wang, Z Y; Niu, Y F; Niu, Z M; Guo, J Y
• Is Part Of: Journal of physics. Volume 43:Number 4(2016:Apr.)
• Publication Date: 2016-02-22
• Subjects: nuclear β-decay half-lives -- quasiparticle random phase approximation -- pairing interaction; 23.40.-s -- 21.60.Jz -- 21.30.Fe; Nuclear physics -- Periodicals; Particles (Nuclear physics) -- Periodicals; Physique nucléaire -- Périodiques; Particules (Physique nucléaire) -- Périodiques; Kernfysica; Elementaire deeltjes; 539.7
• DOI: 10.1088/0954-3899/43/4/045108
• Languages: English
• ISSNs: 0954-3899

Abstract

Abstract: The self-consistent proton–neutron quasiparticle random phase approximation approach is employed to calculate β -decay half-lives of neutron-rich even–even nuclei with . A newly proposed nonlinear point-coupling effective interaction PC-PK1 is used in the calculations. It is found that the isoscalar proton–neutron pairing interaction can significantly reduce β -decay half-lives. With an isospin-dependent isoscalar proton–neutron pairing strength, our results well reproduce the experimental β -decay half-lives, although the pairing strength is not adjusted using the half-lives calculated in this study.