Enhanced collectivity in neutron-deficient Sn isotopes in energy functional based collective Hamiltonian
Enhanced collectivity in neutron-deficient Sn isotopes in energy functional based collective Hamiltonian
复制标题
基于能量泛函的集体哈密顿量中缺中子 Sn 同位素的集体性增强
DOI:
10.1016/j.physletb.2012.09.061
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发表时间:
2012-09
影响因子:
4.4
通讯作者:
Meng, J.
中科院分区:
文献类型:
--
作者:
Li, Z. P.;Li, C. Y.;Xiang, J.;Yao, J. M.;Meng, J.
The low-lying collective states in Sn isotopes are studied by a five-dimensional collective Hamiltonian with parameters determined from the triaxial relativistic mean-field calculations using the PC-PK1 energy density functional. The systematics for both the excitation energies of 21+states and B(E2;01+→21+) values are reproduced rather well, in particular, the enhanced E2 transitions in the neutron-deficient Sn isotopes with N<66. We show that the gradual degeneracy of neutron levels 1g7/2and 2d5/2around the Fermi surface leads to the increase of level density and consequently the enhanced paring correlations from N=66 to 58. It provokes a large quadrupole shape fluctuation around the spherical shape, and leads to an enhanced collectivity in the isotopes around N=58.
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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
影响因子:
4.4
作者:
A. Ansari
通讯作者:
A. Ansari
影响因子:
3.5
作者:
通讯作者:
--
影响因子:
8.6
作者:
C. Vaman;C. Andreoiu;D. Bazin;A. Becerril;B. A. Brown;C. Campbell;A. Chester;J. Cook;D. Dinca;A. Gade;D. Galaviz;T. Glasmacher;M. Hjorth-Jensen;M. Horoi;D. Miller;V. Moeller;W. Mueller;A. Schiller;K. Starosta;A. Stolz;J. R. Terry;A. Volya;V. Zelevinsky;H. Zwahlen
通讯作者:
C. Vaman;C. Andreoiu;D. Bazin;A. Becerril;B. A. Brown;C. Campbell;A. Chester;J. Cook;D. Dinca;A. Gade;D. Galaviz;T. Glasmacher;M. Hjorth-Jensen;M. Horoi;D. Miller;V. Moeller;W. Mueller;A. Schiller;K. Starosta;A. Stolz;J. R. Terry;A. Volya;V. Zelevinsky;H. Zwahlen
影响因子:
3.1
作者:
Z. P. Li;T. Nikšić;D. Vretenar;J. Meng
通讯作者:
Z. P. Li;T. Nikšić;D. Vretenar;J. Meng