Studies of Some Exotic Properties of 6—11Li Nuclei in the Framework of Shell Model

  • The possible microscopic mechanisms of some exotic properties of 6—11Li nuclei,especially for dripline nucleus 11Li are investigated in the framework of Shell Model. The quadrupole moment of the ground state of 6Li is primarily sensitive to the tensor components of interactions. The electromagnetic transition probabilities of the first excited states of 6—8Li nuclei are extremely enhanced. The collectiveness possibly results from cluster structures. In the vicinity of 3≤Z ≤5 and N≈8,there may exist the phenomenon of crossed-shell excitation and/or N=8 shell gap disappeariance.
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  • [1] M.G.Mayer,J.H.D.Jensen,Elementary theory of nuclear structure,John.Wiley:NewYork(1955).[2]J.P.Elliott,Nucl.Phys.,A507(1990)15c-24c.[3]T.Kobayashietal,Phys.Lett.,B232(1989)51.[4]P.G.Hansen,B.Jonson,Europhysics Lett.,4(1987)409.[5]Y.Suzuki,K.Ikada Phys.Rev.,C38(1988)410.[6]M.Nishimana,Annual Report RCNP(1987).[7]DieterKurath,Phys.Rev.,C43(1991)43.[8]F.Ajzenberg-Selove,Nucl.Phys,A490(198)1-225.[9]B.A.Brown,E.K.Warburton,B.H.Wildenthal,MSUCL-715(1990).[10]Proc.ofInt.Suymp.on Structure and Reactions of Unstable Nucl,Nigata,Japan1991,editedbyK.Ikeda and Y.Suzuki,World Scientific P252,158,189,233.[11]H.G.Bohlem,B.Gebauer et al,Z.Phys.,A344(1993)381.[12]S.Cohen,D.Kurath,Nucl.Phys.,73(1965)1.[13]N.Kumar,Nucl.Phys,A225(1974)221.[14]A.G.M.VanHees,A.A.Wolters,P.W.M.Glaudemans,Nucl.Phys.,A476(1988)61.[15]D.J.Millener,D.Kurath,Nucl.Phys.,A255(1975)315.
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Dai Lianrong and Gu Jinnan. Studies of Some Exotic Properties of 6—11Li Nuclei in the Framework of Shell Model[J]. Chinese Physics C, 1995, 19(7): 646-652.
Dai Lianrong and Gu Jinnan. Studies of Some Exotic Properties of 6—11Li Nuclei in the Framework of Shell Model[J]. Chinese Physics C, 1995, 19(7): 646-652. shu
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Received: 1900-01-01
Revised: 1900-01-01
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Studies of Some Exotic Properties of 6—11Li Nuclei in the Framework of Shell Model

    Corresponding author: Dai Lianrong,
  • Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000

Abstract: The possible microscopic mechanisms of some exotic properties of 6—11Li nuclei,especially for dripline nucleus 11Li are investigated in the framework of Shell Model. The quadrupole moment of the ground state of 6Li is primarily sensitive to the tensor components of interactions. The electromagnetic transition probabilities of the first excited states of 6—8Li nuclei are extremely enhanced. The collectiveness possibly results from cluster structures. In the vicinity of 3≤Z ≤5 and N≈8,there may exist the phenomenon of crossed-shell excitation and/or N=8 shell gap disappeariance.

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