Study of nuclei around Z = 28 by large-scale shell model calculations
1 Department of Physics, University of Tokyo, Tokyo 113-0033, Japan .
2 Center for Nuclear Study, University of Tokyo, Tokyo 113-0033, Japan .
3 National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan, USA .
4 Center for Mathematical Sciences, University of Aizu, Ikki-machi, Aizu-Wakamatsu, Fukushima 965-8580, Japan .
5 Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki, 319-1195, Japan .
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Published online: 20 March 2014
We study Cr and Ni isotopes by using Monte Carlo shell model (MCSM) calculations in a pfg9d5 model space. In the MCSM, a wave function is represented as a linear combination of angular-momentum- and parity-projected deformed Slater determinants(MCSM bases) and we can obtain eigenstates in a large model space such as pfg9d5 space. We study intrinsic shapes of nuclei by using deformations of MCSM bases before projection. We show results of MCSM calculations in Cr and Ni isotopes and a level scheme of 68Ni and discuss the magicity of N = 40 in Cr and Ni isotopes and shape coexistence in 68Ni.
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