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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
physics and astronomy
β-decay half-lives of neutron-rich nuclei and matter flow in the r-process
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Volume 723, No. 1-3, Year 2013
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Description
The β-decay half-lives of neutron-rich nuclei with 20. ≤. Z≤. 50 are systematically investigated using the newly developed fully self-consistent proton-neutron quasiparticle random phase approximation (QRPA), based on the spherical relativistic Hartree-Fock-Bogoliubov (RHFB) framework. Available data are reproduced by including an isospin-dependent proton-neutron pairing interaction in the isoscalar channel of the RHFB. +. QRPA model. With the calculated β-decay half-lives of neutron-rich nuclei a remarkable speeding up of r-matter flow is predicted. This leads to enhanced r-process abundances of elements with A≳. 140, an important result for the understanding of the origin of heavy elements in the universe. © 2013 Elsevier B.V.
Authors & Co-Authors
Niu, Zhongming
China, Hefei
Anhui University
China, Beijing
Peking University
Niu, Yifei
China, Beijing
Peking University
China, Mianyang
Southwest Institute of Fluid Physics Mianyang
Liang, Haozhao
China, Beijing
Peking University
Japan, Wako
Riken
Long, Wenhui
China, Lanzhou
Lanzhou University
Nikšić, Tamara
Croatia, Zagreb
Sveučilište u Zagrebu, Prirodoslovno - Matematički Fakultet
Vretenar, Dario
Croatia, Zagreb
Sveučilište u Zagrebu, Prirodoslovno - Matematički Fakultet
Meng, Jie
China, Beijing
Peking University
China, Beijing
Beihang University
South Africa, Stellenbosch
Stellenbosch University
Statistics
Citations: 103
Authors: 7
Affiliations: 8
Identifiers
Doi:
10.1016/j.physletb.2013.04.048
ISSN:
03702693