Chinese Physics C > 2006, Vol. 30 > Issue(5): 402-404

Signature Inversion in the πh_9/2×υi_13/2Oblate Band of 188TL

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China2 Japan Atomic Energy Research Institute, Tokai, Ibaraki 319-1195, Japan3 Chiba Institute of Technology, Narashino, Chiba 275-0023, Japan

Abstract
HTML
Reference
Related

PDF

Abstract：
High-spin Level structure of ¹⁸⁸Tl has been studied via ¹⁵⁷Gd( ³⁵Cl,4n) fusion-evaporation reaction at beam energy of 170MeV. A rotational band built on the πh _9/2×υi _13/2configuration with oblate deformation has been established. Spin values have been proposed to the πh _9/2×υi _13/2oblate band based on the similarities between the oblate band of ¹⁸⁸Tl and those in odd-odd ^190—200Tl. With the spin assignments, the low-spin signature inversion has been revealed for the πh _9/2×υi _13/2oblate band of ¹⁸⁸Tl. The low-spin signature inversion can be interpreted qualitatively in the framework of the quasi-particles plus rotor model including a J dependent p-n residual interaction.

References

[1]

. Bengtsson R et al. Nucl. Phys., 1984, A415: 1892. ZHANG Y H et al. Science in China, 2003, G33(1): 69 (in Chinese)(张玉虎等.中国科学,2003, 633(1): 69)3. ZHANG Y H, Oshima M, Toh Y et al. Phys. Rev., 2003,C68: 0543134. Plettner C et al. Phys. Rev. Lett., 2000, 85: 9335. Cardona M A et al. Phys. Rev., 1999, C51: 12986. ZHOU X H, XIE C Y et al. J. Phys. G: Nucl. Part. Phys.,2005, 31: S1985-S19887. Kreiner A J et al. Phys. Rev., 1980, C21: 9338. Kreiner A J et al. Phys. Rev., 1979, C20: 22059. Kreiner A J et al. Nucl. Phys., 1978, A308: 14710. Kreiner A J et al. Nucl. Phys., 1977, A282: 24311. Kreiner A J et al. Phys. Rev., 1981, C23: 74812. Van Duppen P et al. Nucl. Phys., 1981, A529: 26813. Huyse M et al. Phys. Lett., 1988, B201: 29314. Kreiner A J et al. Phys. Lett., 1981, 47: 170915. Bengtsson R, Frauendof S. Nucl. Phys., 1979, A327: 13916. Hannachi F, Bastin G et al. Nucl. Phys., 1979, A481: 13517. Revoil W et al. Phys. Rev., 1994, C49: R58718. Bearden I G, Janssens R V F et al. Nucl. Phys., 1994,A576: 44119. ZHANG Yu-Hu, Oshima M, Morikawa T et al. HEP NP,2003, 27(4): 313 (in Ohinese)(张玉虎,Oshima M, Morikawa T等.能物理与核物理,2003, 27(4): 313)20. Kreiner A J et al. Phys. Rev., 1980, C22: 748

Access

Get Citation

MA Long, ZHOU Xiao-Hong, ZHANG Yu-Hu and GUO Ying-Xiang. Signature Inversion in the πh _9/2×υi _13/2Oblate Band of 188TL[J]. Chinese Physics C, 2006, 30(5): 402-404.

MA Long, ZHOU Xiao-Hong, ZHANG Yu-Hu and GUO Ying-Xiang. Signature Inversion in the πh _9/2×υi _13/2Oblate Band of 188TL[J]. Chinese Physics C, 2006, 30(5): 402-404. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2005-09-30
Revised: 2005-10-13

Article Metric

Article Views(4152)
PDF Downloads(644)
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

Signature Inversion in the πh_9/2×υi_13/2Oblate Band of 188TL

Corresponding author:MA Long,

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China2 Japan Atomic Energy Research Institute, Tokai, Ibaraki 319-1195, Japan3 Chiba Institute of Technology, Narashino, Chiba 275-0023, Japan

Received Date:2005-09-30
Accepted Date:2005-10-13
Available Online:2006-05-05

Abstract:High-spin Level structure of¹⁸⁸Tl has been studied via¹⁵⁷Gd(³⁵Cl,4n) fusion-evaporation reaction at beam energy of 170MeV. A rotational band built on the πh_9/2×υi_13/2configuration with oblate deformation has been established. Spin values have been proposed to the πh_9/2×υi_13/2oblate band based on the similarities between the oblate band of¹⁸⁸Tl and those in odd-odd^190—200Tl. With the spin assignments, the low-spin signature inversion has been revealed for the πh_9/2×υi_13/2oblate band of¹⁸⁸Tl. The low-spin signature inversion can be interpreted qualitatively in the framework of the quasi-particles plus rotor model including a J dependent p-n residual interaction.