Microscopic Mechanism of Moments of Inertia and Odd-even Differences for Well-Deformed Actinide Nuclei

  • The microscopic mechanism of the variation with rotational frequency of moments of inertia and their odd-even differences for well-deformed actinide nuclei are analyzed by using the particle-number conserving (PNC) method for treating nuclear pairing interaction. The moments of inertia for bands building on high j intruder orbitals in odd-A nuclei, e.g., the 235U (ν[743]7/2) band, are found to be much larger than those of ground-state bands in neighboring even-even nuclei. Moreover, there exist large odd-even differences in the ω variation of moments of inertia. All these experimental odd-even differences are reproduced quite well in the PNC calculation, in which the effective monopole and quadrupole pairing interaction strengths are determined by the experimental odd-even differences in binding energies and bandhead moments of inertia, and no free parameter is involved in the PNC calculation.
  • 加载中
  • [1] .Bohr A,Mottelson B M.Nuclear Structure Vol.Ⅱ ,New York: Ben..jamin,19752.Firestone F B et al.Table of Isotopes,1996,CD..ROM3.ZENG J Y,LEI Y A,JIN T H et al.Phys.Rev.,1994,C50: 7464.ZENG J Y,LIU S X,LEI Y A et al.Phys.Rev.,2001,C63: 0243055.ZENG J Y,LIU S X,GONG L X et al.Phys.Rev.,2002,C65:0443076.Nilsson S G et al.Nucl.Phys.,1969,A131:17.Bengtsson R,Frauendorf S,May F R At.Data Nucl.Data Tables,1986,35: 158.Rowe D J.Nuclear Collect ive Motion,London: Methuen,1970
  • 加载中

Get Citation
YU Lei, LIU Shu-Xin and ZENG Jin-Yan. Microscopic Mechanism of Moments of Inertia and Odd-even Differences for Well-Deformed Actinide Nuclei[J]. Chinese Physics C, 2004, 28(1): 56-60.
YU Lei, LIU Shu-Xin and ZENG Jin-Yan. Microscopic Mechanism of Moments of Inertia and Odd-even Differences for Well-Deformed Actinide Nuclei[J]. Chinese Physics C, 2004, 28(1): 56-60. shu
Milestone
Received: 2003-05-14
Revised: 1900-01-01
Article Metric

Article Views(2411)
PDF Downloads(547)
Cited by(0)
Policy on re-use
To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Email This Article

Title:
Email:

Microscopic Mechanism of Moments of Inertia and Odd-even Differences for Well-Deformed Actinide Nuclei

    Corresponding author: ZENG Jin-Yan,
  • School of Physics,Peking University,Beijing 100871,China2 Center of Theoretical Nuclear Physics,National Laboratory of Heavy Ion Accelerator,Lanzhou 730000,China3 Department of Physics,Guizhou Normal University,Guiyang 550001,China

Abstract: The microscopic mechanism of the variation with rotational frequency of moments of inertia and their odd-even differences for well-deformed actinide nuclei are analyzed by using the particle-number conserving (PNC) method for treating nuclear pairing interaction. The moments of inertia for bands building on high j intruder orbitals in odd-A nuclei, e.g., the 235U (ν[743]7/2) band, are found to be much larger than those of ground-state bands in neighboring even-even nuclei. Moreover, there exist large odd-even differences in the ω variation of moments of inertia. All these experimental odd-even differences are reproduced quite well in the PNC calculation, in which the effective monopole and quadrupole pairing interaction strengths are determined by the experimental odd-even differences in binding energies and bandhead moments of inertia, and no free parameter is involved in the PNC calculation.

    HTML

Reference (1)

目录

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return