Double-Blocking Effects in Odd-odd Superdeformed Nucleus <SUP>194</SUP>Tl

HE Xiao-Tao; LIU Shu-Xin; YU Shao-Ying; ZHAO En-Guang

Chinese Physics C> 2003, Vol. 27> Issue(2) : 124-126

Double-Blocking Effects in Odd-odd Superdeformed Nucleus ¹⁹⁴Tl

College of Science and Engineering, Inner Mongolia University for Nationalities,Tongliao 028043,China2 Institute of Theoretical Physics,Chinese Academy of Sciences, Beijing 100080,China3 Center of Theoretical Nuclear Physics,National Laboratory of Heavy Ion Accelerator,Lanzhou 730000,China

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Abstract：
Six superdeformed bands of odd-odd nucleus ¹⁹⁴Tl in A～190 mass region are studied using the particle-number conserving method for treating the cranked shell model with pairing interactions. Calculated results agree with experiments very well. Based on our calculation the configurations of the six superdeformed bands are assigned and the influence of blocking effects of proton and neutron on moments of inertia is investigated in detail. The variation of moments of inertia with rotational frequency is mainly attributed to the intruder shells (neutron N=7 and proton N=6), whereas the contributions to moment of inertia from other shells remain almost unchanged with rotational frequency.

References

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. Singh B ,Firestone R B ,Chu S Y F .Nucl.Data Sheets,1996,78:12. Afanasjev A V ,Konig J ,Ring P .Phys.Rev.,1999,C60:051303 and references therein3. LIU S X ,ZENG J Y .Phys.Rev.,1998,C58:32664. Fischer S M et al.Phys.Rev.,1996,C53:21265. Azaiez F et al.Phys.Rev.Lett.,1991,66:10306. ZENG J Y ,JIN T H ,ZHAO Z J.Phys.Rev.,1994,C50:13887. XIN X B ,LEI Y A ,LIU S X et al.Chin.Phys.Lett.,2000,17:948. ZENG J Y ,LIU S X ,LEI Y A et al.Phys.Rev.,2001,C63:0243059. Bengtsson T ,Ragnarsson I.Nucl.Phys.,1985,A436:14

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HE Xiao-Tao, LIU Shu-Xin, YU Shao-Ying and ZHAO En-Guang. Double-Blocking Effects in Odd-odd Superdeformed Nucleus ¹⁹⁴Tl[J]. Chinese Physics C, 2003, 27(2): 124-126.

HE Xiao-Tao, LIU Shu-Xin, YU Shao-Ying and ZHAO En-Guang. Double-Blocking Effects in Odd-odd Superdeformed Nucleus ¹⁹⁴Tl[J]. Chinese Physics C, 2003, 27(2): 124-126. shu

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Received: 2002-03-11
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

Double-Blocking Effects in Odd-odd Superdeformed Nucleus ¹⁹⁴Tl

Corresponding author: HE Xiao-Tao,

College of Science and Engineering, Inner Mongolia University for Nationalities,Tongliao 028043,China2 Institute of Theoretical Physics,Chinese Academy of Sciences, Beijing 100080,China3 Center of Theoretical Nuclear Physics,National Laboratory of Heavy Ion Accelerator,Lanzhou 730000,China

Received Date: 2002-03-11
Accepted Date: 1900-01-01
Available Online: 2003-02-05

Abstract: Six superdeformed bands of odd-odd nucleus ¹⁹⁴Tl in A～190 mass region are studied using the particle-number conserving method for treating the cranked shell model with pairing interactions. Calculated results agree with experiments very well. Based on our calculation the configurations of the six superdeformed bands are assigned and the influence of blocking effects of proton and neutron on moments of inertia is investigated in detail. The variation of moments of inertia with rotational frequency is mainly attributed to the intruder shells (neutron N=7 and proton N=6), whereas the contributions to moment of inertia from other shells remain almost unchanged with rotational frequency.