Deexcitation energies of superdeformed secondary minima of odd-odd A u and T1 isotopes are investigated with the relativistic mean field (RMF) model where the isoscalar-isovector coupling is included to change the s...Deexcitation energies of superdeformed secondary minima of odd-odd A u and T1 isotopes are investigated with the relativistic mean field (RMF) model where the isoscalar-isovector coupling is included to change the symmetry energy. It is verified by the theoretical analysis and numerical results that the deexcitation energies of superdeformed secondary minima relative to the ground states in these heavy nuclei are sensitive to differences in the symmetry energy. In particular, the linear correlation between the deexeitation energies of odd-odd Au and T1 isotopes and the neutron skin thickness in 208Pb is established. Moreover, explorations are extended to superdeformed candidates of other mass regions. It is found that the linear correlation can even be established between the deexcitation energies and the symmetry pressure at subsaturation density. These indicate that deexcitation energies can serve as a probe to the density dependence of the symmetry energy.展开更多
可能用到的数据原子量:H 1 C 12 N 14 O 16 一、选择题(每小题1分,共5分。每小题只有一个选项符合题意。) 1.1992年,我国取得的重大科技成果之一是发现了三种元素的新的同位素,其中一种是<sub>8</sub>0<sup>208<...可能用到的数据原子量:H 1 C 12 N 14 O 16 一、选择题(每小题1分,共5分。每小题只有一个选项符合题意。) 1.1992年,我国取得的重大科技成果之一是发现了三种元素的新的同位素,其中一种是<sub>8</sub>0<sup>208</sup>Hg,它的中子数是 (A) 80 (B) 128 (C) 208 (D) 208 B 2.暂时硬水煮沸后的水垢主要是 (A) Ca (HCO<sub>3</sub>)<sub>2</sub> (B) Ca (OH)<sub>2</sub> (C) MgCO<sub>3</sub> (D) Mg (OH)<sub>2</sub>和CaCO<sub>3</sub>展开更多
基金Supported in part by the National Natural Science Foundation of China under Grant No.10975033the China Jiangsu Provincial Natural Science Foundation under Grant No.BK2009261+1 种基金 the Knowledge Innovation Project of the Chinese Academy of Sciences under Grant No.KJXC3-SYW-N2 the China Major State Basic Research Development Program under Grant No.2007CB815004
文摘Deexcitation energies of superdeformed secondary minima of odd-odd A u and T1 isotopes are investigated with the relativistic mean field (RMF) model where the isoscalar-isovector coupling is included to change the symmetry energy. It is verified by the theoretical analysis and numerical results that the deexcitation energies of superdeformed secondary minima relative to the ground states in these heavy nuclei are sensitive to differences in the symmetry energy. In particular, the linear correlation between the deexeitation energies of odd-odd Au and T1 isotopes and the neutron skin thickness in 208Pb is established. Moreover, explorations are extended to superdeformed candidates of other mass regions. It is found that the linear correlation can even be established between the deexcitation energies and the symmetry pressure at subsaturation density. These indicate that deexcitation energies can serve as a probe to the density dependence of the symmetry energy.