File Download
Links for fulltext
(May Require Subscription)
 Publisher Website: 10.1103/PhysRevC.102.024314
 WOS: WOS:000560032200001
 Find via
Supplementary

Citations:
 Web of Science: 0
 Appears in Collections:
Article: Deformed relativistic HartreeBogoliubov theory in continuum with a pointcoupling functional: Examples of eveneven Nd isotopes
Title  Deformed relativistic HartreeBogoliubov theory in continuum with a pointcoupling functional: Examples of eveneven Nd isotopes 

Authors  
Issue Date  2020 
Publisher  American Physical Society. The Journal's web site is located at http://journals.aps.org/prc/ 
Citation  Physical Review C: covering nuclear physics, 2020, v. 102 n. 2, article no. 024314 How to Cite? 
Abstract  Background: The study of exotic nuclei far from the beta stability line is stimulated by the development of radioactive ion beam facilities worldwide and brings opportunities and challenges to existing nuclear theories. Including selfconsistently the nuclear superfluidity, deformation, and continuum effects, the deformed relativistic HartreeBogoliubov theory in continuum (DRHBc) has turned out to be successful in describing both stable and exotic nuclei. Due to several challenges, however, the DRHBc theory has only been applied to study light nuclei so far.
Purpose: The aim of this work is to develop the DRHBc theory based on the pointcoupling density functional and examine its possible application for all eveneven nuclei in the nuclear chart by taking Nd isotopes as examples.
Method: The nuclear superfluidity is taken into account via Bogoliubov transformation. Densities and potentials are expanded in terms of Legendre polynomials to include the axial deformation degrees of freedom. Sophisticated relativistic HartreeBogoliubov equations in coordinate space are solved in a Dirac WoodsSaxon basis to consider the continuum effects.
Results: Numerical convergence for energy cutoff, angular momentum cutoff, Legendre expansion, pairing strength, and (un)constrained calculations are confirmed for the DRHBc theory from light nuclei to heavy nuclei. The groundstate properties of eveneven Nd isotopes are calculated with the successful density functional PCPK1 and compared with the spherical nuclear mass table based on the relativistic continuum HartreeBogoliubov (RCHB) theory as well as the available data. The calculated binding energies are in very good agreement with the existing experimental values with a rms deviation of 0.958 MeV, which is remarkably smaller than 8.301 MeV in the spherical case. The predicted proton and neutron dripline nuclei for Nd isotopes are respectively Nd120 and Nd214, in contrast with Nd126 and Nd228 in the RCHB theory. The experimental quadrupole deformations and charge radii are reproduced well. An interesting decoupling between the oblate shape beta(2) = 0.273 contributed by bound states and the nearly spherical one beta(2) = 0.047 contributed by continuum is found in Nd214. Contributions of different singleparticle states to the total neutron density are investigated and an exotic neutron skin phenomenon is suggested for Nd214. The proton radioactivity beyond the proton drip line is discussed and Nd114, Nd116, and Nd118 are predicted to be candidates for twoproton or even multiproton radioactivity.
Conclusions: The DRHBc theory based on the pointcoupling density functional is developed and detailed numerical checks are performed. The techniques to construct the DRHBc mass table for eveneven nuclei are explored and extended for all eveneven nuclei in the nuclear chart by taking Nd isotopes as examples. The available experimental data are reproduced well. The deformation and continuum effects on dripline nuclei, exotic neutron skin, and proton radioactivity are presented. 
Persistent Identifier  http://hdl.handle.net/10722/286757 
ISSN  2019 Impact Factor: 2.988 
ISI Accession Number ID 
DC Field  Value  Language 

dc.contributor.author  Zhang, K   
dc.contributor.author  Cheoun, MK   
dc.contributor.author  Choi, YB   
dc.contributor.author  Chong, PS   
dc.contributor.author  Dong, J   
dc.contributor.author  Geng, L   
dc.contributor.author  Ha, E   
dc.contributor.author  He, X   
dc.contributor.author  Heo, C   
dc.contributor.author  Ho, MC   
dc.contributor.author  In, EJ   
dc.contributor.author  Kim, S   
dc.contributor.author  Kim, Y   
dc.contributor.author  Lee, CH   
dc.contributor.author  Lee, J   
dc.contributor.author  Li, Z   
dc.contributor.author  Luo, T   
dc.contributor.author  Meng, J   
dc.contributor.author  Mun, MH   
dc.contributor.author  Niu, Z   
dc.contributor.author  Pan, C   
dc.contributor.author  Papakonstantinou, P   
dc.contributor.author  Shang, X   
dc.contributor.author  Shen, C   
dc.contributor.author  Shen, G   
dc.contributor.author  Sun, W   
dc.contributor.author  Sun, XX   
dc.contributor.author  Tam, CK   
dc.contributor.author  Thaivayongnou, T   
dc.contributor.author  Wang, C   
dc.contributor.author  Wong, SH   
dc.contributor.author  Xia, X   
dc.contributor.author  Yan, Y   
dc.contributor.author  Yeung, RWY   
dc.contributor.author  Yiu, TC   
dc.contributor.author  Zhang, S   
dc.contributor.author  Zhang, W   
dc.contributor.author  Zhou, SG   
dc.date.accessioned  20200904T13:29:53Z   
dc.date.available  20200904T13:29:53Z   
dc.date.issued  2020   
dc.identifier.citation  Physical Review C: covering nuclear physics, 2020, v. 102 n. 2, article no. 024314   
dc.identifier.issn  24699985   
dc.identifier.uri  http://hdl.handle.net/10722/286757   
dc.description.abstract  Background: The study of exotic nuclei far from the beta stability line is stimulated by the development of radioactive ion beam facilities worldwide and brings opportunities and challenges to existing nuclear theories. Including selfconsistently the nuclear superfluidity, deformation, and continuum effects, the deformed relativistic HartreeBogoliubov theory in continuum (DRHBc) has turned out to be successful in describing both stable and exotic nuclei. Due to several challenges, however, the DRHBc theory has only been applied to study light nuclei so far. Purpose: The aim of this work is to develop the DRHBc theory based on the pointcoupling density functional and examine its possible application for all eveneven nuclei in the nuclear chart by taking Nd isotopes as examples. Method: The nuclear superfluidity is taken into account via Bogoliubov transformation. Densities and potentials are expanded in terms of Legendre polynomials to include the axial deformation degrees of freedom. Sophisticated relativistic HartreeBogoliubov equations in coordinate space are solved in a Dirac WoodsSaxon basis to consider the continuum effects. Results: Numerical convergence for energy cutoff, angular momentum cutoff, Legendre expansion, pairing strength, and (un)constrained calculations are confirmed for the DRHBc theory from light nuclei to heavy nuclei. The groundstate properties of eveneven Nd isotopes are calculated with the successful density functional PCPK1 and compared with the spherical nuclear mass table based on the relativistic continuum HartreeBogoliubov (RCHB) theory as well as the available data. The calculated binding energies are in very good agreement with the existing experimental values with a rms deviation of 0.958 MeV, which is remarkably smaller than 8.301 MeV in the spherical case. The predicted proton and neutron dripline nuclei for Nd isotopes are respectively Nd120 and Nd214, in contrast with Nd126 and Nd228 in the RCHB theory. The experimental quadrupole deformations and charge radii are reproduced well. An interesting decoupling between the oblate shape beta(2) = 0.273 contributed by bound states and the nearly spherical one beta(2) = 0.047 contributed by continuum is found in Nd214. Contributions of different singleparticle states to the total neutron density are investigated and an exotic neutron skin phenomenon is suggested for Nd214. The proton radioactivity beyond the proton drip line is discussed and Nd114, Nd116, and Nd118 are predicted to be candidates for twoproton or even multiproton radioactivity. Conclusions: The DRHBc theory based on the pointcoupling density functional is developed and detailed numerical checks are performed. The techniques to construct the DRHBc mass table for eveneven nuclei are explored and extended for all eveneven nuclei in the nuclear chart by taking Nd isotopes as examples. The available experimental data are reproduced well. The deformation and continuum effects on dripline nuclei, exotic neutron skin, and proton radioactivity are presented.   
dc.language  eng   
dc.publisher  American Physical Society. The Journal's web site is located at http://journals.aps.org/prc/   
dc.relation.ispartof  Physical Review C: covering nuclear physics   
dc.rights  Copyright 2020 by The American Physical Society. This article is available online at https://doi.org/10.1103/PhysRevC.102.024314.   
dc.title  Deformed relativistic HartreeBogoliubov theory in continuum with a pointcoupling functional: Examples of eveneven Nd isotopes   
dc.type  Article   
dc.identifier.email  Lee, J: jleehc@hku.hk   
dc.identifier.authority  Lee, J=rp01902   
dc.description.nature  published_or_final_version   
dc.identifier.doi  10.1103/PhysRevC.102.024314   
dc.identifier.hkuros  314040   
dc.identifier.volume  102   
dc.identifier.issue  2   
dc.identifier.spage  article no. 024314   
dc.identifier.epage  article no. 024314   
dc.identifier.isi  WOS:000560032200001   
dc.publisher.place  United States   