arXiv:nucl-th/0312107·v1·Nuclear Theory
Shell structures in oxygen isotopes described with modern nucleon-nucleon interactions
S. Fujii (1) · R. Okamoto (2) · K. Suzuki (2) · ((1)Univ. of Tokyo · (2)Kyushu Inst. of Tech.)
Abstract
Shell structures in the N\simeq Z nucleus ^{17}O and the neutron-rich oxygen isotopes ^{23}O and ^{25}O are microscopically described by calculating single-particle energies with modern nucleon-nucleon interactions within the framework of the unitary-model-operator approach. It is found that the effect of three-body cluster terms on the single-particle energy is more important in ^{23}O and ^{25}O than ^{17}O.
Comments: 5 pages, 1 figure, Talk at the International Symposium on "A New Era of Nuclear Structure Physics (NENS03)", 19-22 Nov. 2003, Niigata, Japan