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Occurrence of high-lying rotational bands in the interacting boson model

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    0346484 - ÚJF 2011 RIV US eng J - Journal Article
    Macek, M. - Dobeš, Jan - Cejnar, P.
    Occurrence of high-lying rotational bands in the interacting boson model.
    Physical Review. C. Roč. 82, č. 1 (2010), 014308/1-014308/11. ISSN 0556-2813
    R&D Projects: GA ČR GA202/09/0084
    Institutional research plan: CEZ:AV0Z10480505
    Keywords : NUCLEAR COLLECTIVE MODELS * QUASI-DYNAMIC SYMMETRY * PHASE-TRANSITIONS
    Subject RIV: BE - Theoretical Physics
    Impact factor: 3.416, year: 2010

    We observe an adiabatic separation of collective rotations built upon a subset of intrinsic vibrational states within the interacting boson model (IBM) in the parameter domains corresponding to axially deformed ground state. The effect is not limited only to the low-lying states and closely follows the variation of quantum and classical measures of regularity. It leads to the existence of rotational bands even close to the highest accessible energies in specific regions within the IBM symmetry triangle. We propose a more general effect of regular intrinsic dynamics on the adiabatic separation of intrinsic and collective motion.
    Permanent Link: http://hdl.handle.net/11104/0187505

     
     
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