Direct neutron capture cross section on 80Ge and probing shape coexistence in neutron-rich nuclei

被引:5
作者
Ahn, S. [1 ,2 ,3 ,4 ]
Bardayan, D. W. [2 ,5 ]
Jones, K. L. [1 ]
Adekola, A. S. [6 ]
Arbanas, G. [7 ]
Blackmon, J. C. [8 ]
Chae, K. Y. [9 ]
Chipps, K. A. [1 ,10 ]
Cizewski, J. A. [6 ]
Hardy, S. [6 ]
Howard, M. E. [6 ,11 ]
Kozub, R. L. [11 ]
Manning, B. [6 ]
Matos, M. [8 ]
Nesaraja, C. D. [2 ]
O'Malley, P. D. [5 ,6 ]
Pain, S. D. [2 ]
Peters, W. A. [12 ]
Pittman, S. T. [1 ,8 ]
Rasco, B. C. [8 ]
Smith, M. S. [2 ]
Spassova, I [12 ]
机构
[1] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA
[2] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA
[3] Michigan State Univ, Joint Inst Nucl Astrophys, E Lansing, MI 48824 USA
[4] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA
[5] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA
[6] Rutgers State Univ, Dept Phys & Astron, New Brunswick, NJ 08903 USA
[7] Oak Ridge Natl Lab, Reactor & Nucl Syst Div, POB 2009, Oak Ridge, TN 37831 USA
[8] Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USA
[9] Sungkyunkwan Univ, Dept Phys, Suwon 16419, South Korea
[10] Colorado Sch Mines, Dept Phys, Golden, CO 80401 USA
[11] Tennessee Technol Univ, Dept Phys, Cookeville, TN 38505 USA
[12] Oak Ridge Associated Univ, Oak Ridge, TN 37830 USA
基金
新加坡国家研究基金会; 美国国家科学基金会;
关键词
RADIOACTIVE ION-BEAMS; CONSTRUCTION; SPECTROSCOPY; ISOTOPES; CHANNELS; ELEMENTS; STATES; SE-83; D; P;
D O I
10.1103/PhysRevC.100.044613
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
Results are presented from the first neutron-transfer measurement on Ge-80 using an exotic beam from the Holifield Radioactive Ion Beam Facility at Oak Ridge National Laboratory. Newly measured spins and spectroscopic factors of low-lying states of Ge-81 are determined, and the neutron capture cross section on Ge-80 was calculated in a direct-semidirect model to provide a more realistic (n, gamma) reaction rate for r-process simulations. Furthermore, a region of shape coexistence around N approximate to 50 is confirmed and implications for the magic nature of Ni-78 are discussed.
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页数:6
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