No-Core MCSM calculation for 10Be and 12Be low-lying spectra

International Symposium on Exotic Nuclear Structure From Nucleons 2012

Liu, Lang^1 ; Otsuka, Takaharu^2,3,4 ; Shimizu, Noritaka^2 ; Utsuno, Yutaka^5 ; Roth, Robert^6

School of Science, Jiangnan University, No. 1800, Lihu Avenue, Wuxi, 214122, Jiangsu, China^1

Department of Physics, University of Tokyo, Hongo, Tokyo 113-0033, Japan^2

Center for Nuclear Study, University of Tokyo, Hongo, Tokyo 113-0033, Japan^3

National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, United States^4

Japan Atomic Energy Agency, Tokai, Ibaraki, 319-1195, Japan^5

Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany^6

关键词: Center of mass motion;    Low-lying excited state;    Low-lying state;    Operator method;    Quadrupole moments;    Realistic potentials;    Transition probabilities;    Triaxial deformation;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/445/1/012005/pdf
DOI  :  10.1088/1742-6596/445/1/012005

来源: IOP

【 摘 要 】

The low-lying excited states of10Be and12Be are investigated within a no-core Monte Carlo Shell Model (MCSM) framework employing a realistic potential obtained via the Unitary Correlation Operator Method. The excitation energies of the 21+and 22+states and the B(E2; 21,2+→ 0g.s.+) for10Be in the MCSM with a standard treatment of spurious center-of-mass motion show good agreement with experimental data. Some properties of low-lying states of10Be are studied in terms of quadrupole moments and E2 transitions. The E2 transition probability of10C, the mirror nucleus of10Be, is also presented with a good agreement to experiment. The triaxial deformation of10Be and10C is discussed in terms of the B(E2) values.