A MICROSCOPIC ANALYSIS OF THE DIFFERENCE IN ANGULAR MOMENTUM BETWEEN EXCITED AND GROUND BANDS

ZHANG Jing-Ye

Chinese Physics C> 1984, Vol. 8> Issue(3) : 346-351

A MICROSCOPIC ANALYSIS OF THE DIFFERENCE IN ANGULAR MOMENTUM BETWEEN EXCITED AND GROUND BANDS

ZHANG Jing-Ye ^,

Institute of Modern Physics

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An analysis for various components included in the difference of angular momentum between excited and ground bands, i(ω), is done carefully. It is pointed out that, generally, i(ω) should read as i(ω)=i_RAL(ω)+i_PR(ω)+i_SC(ω). And the i(ω). corresponding to s-band of the first backbanding in even-even nuclei is really not only the i_RAL(ω). The various components in i(ω) corresponding to s-band for three typical nuclei ¹⁶⁴Er, ¹⁸⁸Hg and ¹⁵⁶Er are estimated quantitatively and microscopicly by using cranked shell model. For well deformed nuclei, i_RAL plays the dominant role, but the contribution of pairing reduction, i_PR, can not be neglected. As for the soft nuclei like ¹⁸⁸Hg, the contribution from shape changes, i_SC, is very important. While for transitional nuclei as ¹⁵⁶Er, both pairing reduction and shape changes will play substantial role.

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[1]

Bohr and Mottelsson, Proc. Conf. Nucl. Struc., Tokyo, (1977).[2] R. Bengtsson and S. Frauendorf, Nucl. Phys., A314(1979), 27.[3] L. L. Riedinger, Invited Talk at Nordic Meeting on Nucl. Phys. August 16-20, 1982, Fuglso,Denmark.[4] 张锡珍, 张敬业, 原子核物理, 4(1980), 297.[5] 张敬业, 高能物理与核物理, 4(1980), 382.[6] Jing-ye Zhang (张敬业), Slides Report of Workshop on High spin states, Riso (1931), p. 94.[7] 徐躬, 张敬业, 高能物理与核物理, 3(1979), 232.R. Bengtsson, Jing-ye Zhang (张敬业) and S. Aberg. Phys. Lett., 105B(1981), 5.R. Bengtsson, I. Ragnarsson, Jing-ye Zhang (张敬业) and S. Aberg, Oontribut,ion to 4th Inter.Conf. Nucl. far from tab. Hebingor, Denmark, 7-9 June (1981), p. 509.[8] R. Bengtsson and Jig-ye Zhang (张敬业), Phys. Lett., to be published.[9] J. H. Hamilton et al., Phys. Rev. Lett., 35(1975), 562.[10] C. Giinther et al., Z. Phys., A301(1981), 119.M. Guttormsen et al., Nucl. Phys., A383(1982), 541.[11] Jing-ye Zhang (张敬业) and L. L. Biedinger. Contr. Nordic Meeting on Nucl. Phys, 16-20Aug., 1982, p. 64.[12] R. V. F. Janssens. P. Chowhury, H. Emling, D. Frekers, T. L. moo, W. Kuhn, Y. H. chang, P.J. Daly, Z. W. Grahowski, M. Kertelahti, J. Macneil, Jing-ye Zhang (张敬业)and G. Lennder,Contr. to Meeting on High Spin States, Oak Ridge Nov. 1982.[13] I. Ragnarsson, 私人通讯, (1981), 4.[14] R. Bengtsson, Y. S. Chen, Jing-ye Zhang (张敬业) and S. Aberg, Nucl. Phys., A(1983). in press.[15] S. Frauendorf, invited Talk to Workshop of Nuclear Phys., Treiste Oet. (1981).

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ZHANG Jing-Ye. A MICROSCOPIC ANALYSIS OF THE DIFFERENCE IN ANGULAR MOMENTUM BETWEEN EXCITED AND GROUND BANDS[J]. Chinese Physics C, 1984, 8(3): 346-351.

ZHANG Jing-Ye. A MICROSCOPIC ANALYSIS OF THE DIFFERENCE IN ANGULAR MOMENTUM BETWEEN EXCITED AND GROUND BANDS[J]. Chinese Physics C, 1984, 8(3): 346-351. shu

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Received: 1900-01-01
Revised: 1900-01-01

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通讯作者: 陈斌, [email protected]

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沈阳化工大学材料科学与工程学院沈阳 110142

A MICROSCOPIC ANALYSIS OF THE DIFFERENCE IN ANGULAR MOMENTUM BETWEEN EXCITED AND GROUND BANDS

Corresponding author: ZHANG Jing-Ye,

Institute of Modern Physics

Received Date: 1900-01-01

Accepted Date: 1900-01-01

Available Online: 1984-06-05

Abstract: An analysis for various components included in the difference of angular momentum between excited and ground bands, i(ω), is done carefully. It is pointed out that, generally, i(ω) should read as i(ω)=i_RAL(ω)+i_PR(ω)+i_SC(ω). And the i(ω). corresponding to s-band of the first backbanding in even-even nuclei is really not only the i_RAL(ω). The various components in i(ω) corresponding to s-band for three typical nuclei ¹⁶⁴Er, ¹⁸⁸Hg and ¹⁵⁶Er are estimated quantitatively and microscopicly by using cranked shell model. For well deformed nuclei, i_RAL plays the dominant role, but the contribution of pairing reduction, i_PR, can not be neglected. As for the soft nuclei like ¹⁸⁸Hg, the contribution from shape changes, i_SC, is very important. While for transitional nuclei as ¹⁵⁶Er, both pairing reduction and shape changes will play substantial role.

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A MICROSCOPIC ANALYSIS OF THE DIFFERENCE IN ANGULAR MOMENTUM BETWEEN EXCITED AND GROUND BANDS

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