Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2004-09-24
Phys.Rev. C71 (2005) 014303
Physics
Nuclear Physics
Nuclear Theory
13 pages, 7 figures, sumitted to Phys.Rev.C
Scientific paper
10.1103/PhysRevC.71.014303
Systematic analysis of deformations in neutron-rich N=14 isotones was done based on the method of antisymmetrized molecular dynamics. The property of the shape coexistence in $^{28}$Si, which is known to have the oblate ground state and the prolate excited states, was successfully described. The results suggest that the shape coexistence may occur also in neutron-rich N=14 nuclei as well as $^{28}$Si. It was found that the oblate neutron shapes are favored because of the spin-orbit force in most of N=14 isotones. $Q$ moments and $E2$ transition strengths in the neutron-rich nuclei were discussed in relation to the intrinsic deformations, and a possible difference between the proton and neutron deformations in $^{24}$Ne was proposed.
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