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Structure analysis of ^(159)Sm and properties of odd-mass neutron-rich nuclei in mass-160 region 被引量：7

Structure analysis of ^(159)Sm and properties of odd-mass neutron-rich nuclei in mass-160 region
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摘要 Recent fission experiment data provide interesting structure information for neutron-rich nuclei in the mass A ～ 160 region. We apply the projected shell model to study the strongly-deformed, neutron-rich Sm isotopes. We perform calculations for rotational bands up to spin I = 20 (29/2) for even-even (odd-neutron) Sm isotopes, and analyze the band structure of low-lying states with quasiparticle excitations. Emphasis is given to rotational bands based on one-quasiparticle (1-qp) configurations in the odd-mass 159Sm. The 159 Sm result is discussed together with those of the even-even isotopes 158,160Sm. New bands in 159Sm based on neutron 1-qp 1/2 and 5/2+ configurations are predicted. Electromagnetic transition probabilities are discussed. Recent fission experiment data provide interesting structure information for neutron-rich nuclei in the mass A ～ 160 region. We apply the projected shell model to study the strongly-deformed, neutron-rich Sm isotopes. We perform calculations for rotational bands up to spin I = 20 (29/2) for even-even (odd-neutron) Sm isotopes, and analyze the band structure of low-lying states with quasiparticle excitations. Emphasis is given to rotational bands based on one-quasiparticle (1-qp) configurations in the odd-mass 159Sm. The 159 Sm result is discussed together with those of the even-even isotopes 158,160Sm. New bands in 159Sm based on neutron 1-qp 1/2 and 5/2+ configurations are predicted. Electromagnetic transition probabilities are discussed.
作者 YANG YingChun1 & SUN Yang1,2,3 1 Department of Physics, Shanghai Jiao Tong University, Shanghai 200240, China 2Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China 3Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
出处 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS 2011年第S1期81-87,共7页 中国科学：物理学、力学、天文学（英文版）
基金 supported by the Shanghai Pu-Jiang Grant, the National Natural Science Foundation of China (Grant Nos. 10875077 and 11075103) the Doctoral Program of High Education Science Foundation (Grant No.20090073110061) the Chinese Major State Basic Research Development Program (Grant No. 2007CB815005)
关键词 projected shell model NEUTRON-RICH NUCLEI LOW-LYING EXCITATIONS isomeric STATES projected shell model neutron-rich nuclei low-lying excitations isomeric states
分类号 O571.5 [理学—粒子物理与原子核物理]
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共引文献1

  • 1MA ZhongYu1,2 & TIAN Yuan1 1 China Institute of Atomic Energy, Beijing 102413, China,2 Center of Theoretical Nuclear Physics, National Laboratory of Heavy Collision, Lanzhou 730000, China.A possible proton pygmy resonance in ^(17)Ne[J].Science China(Physics,Mechanics & Astronomy),2011,54(S1):49-52.

同被引文献56

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  • 5CHEN Liang1,2, ZHOU XiaoHong1,2, ZHANG YuHu1, ZHANG ShuangQuan3 & ZHU LiHua4 1Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China,2Graduate University of Chinese Academy of Sciences, Beijing 100049, China,3State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China,4China Institute of Atomic Energy, Beijing 102413, China.Properties of the 3/2^-[521] band in the odd-N rare-earth nuclei[J].Science China(Physics,Mechanics & Astronomy),2011,54(S1):37-43. 被引量：3
  • 6HAMILTON J H,RAMAYYA A V,RASMUSSEN J O,HWANG J K,YEOH E Y.New multi-phonon gamma vibrational bands in A～110 neutron-rich nuclei[J].Science China(Physics,Mechanics & Astronomy),2011,54(S1):44-48. 被引量：1
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引证文献7

二级引证文献19

Science China(Physics,Mechanics & Astronomy)
2011年 第S1期

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