Energy density functional analysis of shape evolution in N=28 isotones
Energy density functional analysis of shape evolution in N=28 isotones
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N=28等位素形状演化的能量密度泛函分析
DOI：
10.1103/physrevc.84.054304
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发表时间：
2011-11
影响因子：
3.1
通讯作者：
Meng, J.
中科院分区：
文献类型：
--
作者：
Li, Z. P.;Yao, J. M.;Vretenar, D.;Niksic, T.;Chen, H.;Meng, J.
利用基于相对论能量密度泛函DD-PC 1的结构模型分析了缺质子N = 28同位素的低能集体态结构。本文用三轴核的相对论性Hartree-Bogoliubov模型计算了β-γ平面的束缚能图。中子和质子单粒子水平与四极形变的演变，以及费米表面周围的间隙的发生，提供了一个简单的变形和形状共存的发病微观解释。从用DD-PC 1泛函计算的自洽约束能面出发，采用四极振动和转动的集体哈密顿量分析了~（46）Ar、~（44）S和~（42）Si的激发谱和跃迁率.结果进行比较，现有的数据，和以前的研究的基础上的平均场的方法或大规模的壳模型计算。本研究特别关注44 S，最近报道的数据表明明显的形状共存。
The structure of low-energy collective states in proton-deficient N = 28 isotones is analyzed using structure models based on the relativistic energy density functional DD-PC1. The relativistic Hartree-Bogoliubov model for triaxial nuclei is used to calculate binding energy maps in the β-γ plane. The evolution of neutron and proton single-particle levels with quadrupole deformation, and the occurrence of gaps around the Fermi surface, provide a simple microscopic interpretation of the onset of deformation and shape coexistence. Starting from self-consistent constrained energy surfaces calculated with the functional DD-PC1, a collective Hamiltonian for quadrupole vibrations and rotations is employed in the analysis of excitation spectra and transition rates of 46Ar, 44S, and 42Si. The results are compared to available data, and previous studies based either on the mean-field approach or large-scale shell-model calculations. The present study is particularly focused on 44S, for which data have recently been reported that indicate pronounced shape coexistence.
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DOI：
10.1016/j.nuclphysa.2004.06.032
发表时间：
2004-03
期刊：
Nuclear Physics
影响因子：
--
作者：
E. Caurier;F. Nowacki;A. Poves
通讯作者：
E. Caurier;F. Nowacki;A. Poves
影响因子：
3.1
作者：
Pengwei Zhao;Zhipan Li;Jiangming Yao;Jie Meng
通讯作者：
Pengwei Zhao;Zhipan Li;Jiangming Yao;Jie Meng
DOI：
10.1016/0375-9474(96)00298-9
发表时间：
1996-11
期刊：
Nuclear Physics
影响因子：
--
作者：
D. Hirata;K. Sumiyoshi;B. V. Carlson;H. Toki;I. Tanihata
通讯作者：
D. Hirata;K. Sumiyoshi;B. V. Carlson;H. Toki;I. Tanihata
影响因子：
3.1
作者：
D. Dean;M. T. Ressell;M. Hjorth-Jensen;S. Koonin;K. Langanke;A. Zuker
通讯作者：
D. Dean;M. T. Ressell;M. Hjorth-Jensen;S. Koonin;K. Langanke;A. Zuker
影响因子：
3.1
作者：
D. Sohler;Z. Dombrádi;J. Timár;O. Sorlin;F. Azaiez;F. Amorini;M. Belleguic;C. Bourgeois;C. Donzaud;J. Duprat;D. Guillemaud-Mueller;F. Ibrahim;J. Scarpaci;M. Stanoiu;M. J. López;M. Saint-Laurent;F. Becker;F. Sarazin;C. Stodel;G. Voltolini;S. Lukyanov;V. Maslov;Y. Penionzhkevich;M. Girod;S. Péru;F. Nowacki;G. Sletten;R. Lucas;C. Theisen;D. Baiborodin;Z. Dlouhý;J. Mrázek;C. Borcea;A. Bauchet;C. Moore;M. Taylor
通讯作者：
D. Sohler;Z. Dombrádi;J. Timár;O. Sorlin;F. Azaiez;F. Amorini;M. Belleguic;C. Bourgeois;C. Donzaud;J. Duprat;D. Guillemaud-Mueller;F. Ibrahim;J. Scarpaci;M. Stanoiu;M. J. López;M. Saint-Laurent;F. Becker;F. Sarazin;C. Stodel;G. Voltolini;S. Lukyanov;V. Maslov;Y. Penionzhkevich;M. Girod;S. Péru;F. Nowacki;G. Sletten;R. Lucas;C. Theisen;D. Baiborodin;Z. Dlouhý;J. Mrázek;C. Borcea;A. Bauchet;C. Moore;M. Taylor