Chinese Physics C > 2006, Vol. 30 > Issue(S2): 106-108

Superdeformed Band Terminations in the A=40 Mass Region

DONG Bao-Guo^,,
MA Hai-Liang

China Institute of Atomic Energy, Beijing 102413, China2 Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou, Lanzhou 730000, China

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Abstract：
The superdeformed or highly deformed band terminations in ³⁸K, ³⁶Ar, ^32,34S and ³⁵Cl have been studied by the configuration dependent cranked Nilsson-Strutinsky approach. Some possible superdeformed band terminations were predicted, such as the π(d _5/2) ^－2(f _7/2) ²⊙ν(d _5/2) ^－2(f _7/2) ²([22,22]) configuration in ³²S with deformation about ε ₂=0.61 and γ≈0° at spin I=0－10, especially the superdeformed band terminates at I=19 and about ε ₂=0.39 (with ε ₂=0.50 when I≤9) in ³⁸K, and all of them are favorable for observation. The tendency of these bands in energy with spin increasing favors the band termination, so superdeformed bands terminating would be smooth. The calculated superdeformed band is in good agreement with observed one in ³⁶Ar confirms that the calculated results are reliable.

References

[1]

. Afanasjev A V, Fossan D B, Lane G J et al. Phys. Rep.,1999, 322: 1-1242. Svensson C E, Macchiavelli A, Juodagalvis A et al. Phys.Rev. Lett., 2000, 85: 2693-26963. Ideguchi E, Sarantites D G, Reviol W et al. Phys. Rev.Lett., 2001, 87: 2225014. DONG B G, GUO H C, SHI Y J. Commun. Theor.Phys.(Beijing,China), 2005, 43: 509-5145. Bengtsson T, Ragnarsson I. Nucl. Phys., 1985, A436:146. Headly D M, Sheline R K, Ragnarsson I. Phys. Rev., 1994,C49: 222

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[8]	FANG Xiang-Zheng,RUAN Tu-Nan. Phenomenological Description of Superdeformed Bands. Chinese Physics C, 2001, 25(4): 315-321.
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[18]	CHEN Xingqu,XING Zheng. Examine the Method of Spin Determination in Superdeformed Bands on the Basis of Normal Deformation. Chinese Physics C, 1993, 17(12): 1102-1106.
[19]	LUO Yi-Xiao,ZHONG Ji-Quan. THE SUPERDEFORMED BANDS IN Nd AND Ce NUCLEI. Chinese Physics C, 1989, 13(7): 632-641.
[20]	NING Ping-Zhi. THE ΛN INTERACTION AND THE HYPERNUCLEUS^40_ΛCa. Chinese Physics C, 1987, 11(5): 708-712.

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DONG Bao-Guo and MA Hai-Liang. Superdeformed Band Terminations in the A=40 Mass Region[J]. Chinese Physics C, 2006, 30(S2): 106-108.

DONG Bao-Guo and MA Hai-Liang. Superdeformed Band Terminations in the A=40 Mass Region[J]. Chinese Physics C, 2006, 30(S2): 106-108. shu

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Received: 2006-10-16
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Superdeformed Band Terminations in the A=40 Mass Region

DONG Bao-Guo^,
MA Hai-Liang

Corresponding author:DONG Bao-Guo,

China Institute of Atomic Energy, Beijing 102413, China2 Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou, Lanzhou 730000, China

Received Date:2006-10-16
Accepted Date:1900-01-01
Available Online:2006-01-03

Abstract:The superdeformed or highly deformed band terminations in³⁸K,³⁶Ar,^32,34S and³⁵Cl have been studied by the configuration dependent cranked Nilsson-Strutinsky approach. Some possible superdeformed band terminations were predicted, such as the π(d_5/2)^－2(f_7/2)²⊙ν(d_5/2)^－2(f_7/2)²([22,22]) configuration in³²S with deformation about ε₂=0.61 and γ≈0° at spin I=0－10, especially the superdeformed band terminates at I=19 and about ε₂=0.39 (with ε₂=0.50 when I≤9) in³⁸K, and all of them are favorable for observation. The tendency of these bands in energy with spin increasing favors the band termination, so superdeformed bands terminating would be smooth. The calculated superdeformed band is in good agreement with observed one in³⁶Ar confirms that the calculated results are reliable.