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Transition from gamma-rigid to gamma-soft dynamics in the interacting boson model: Quasicriticality and quasidynamical symmetry
- 1.0331696 - ÚJF 2010 RIV US eng J - Journal Article
Macek, M. - Dobeš, Jan - Cejnar, P.
Transition from gamma-rigid to gamma-soft dynamics in the interacting boson model: Quasicriticality and quasidynamical symmetry.
[Přechod od gama -pevné ke gama-měkké dynamice v modelu interagujících bonusů: Kvazikritičnost a kvazidynamická symetrie.]
Physical Review. C. Roč. 80, č. 1 (2009), 014319/1-014319/15. ISSN 0556-2813
R&D Projects: GA ČR GA202/06/0363; GA ČR GA202/09/0084
Institutional research plan: CEZ:AV0Z10480505
Keywords : NUCLEAR COLLECTIVE MODELS * PHASE-TRANSITIONS * CHAOTIC PROPERTIES
Subject RIV: BE - Theoretical Physics
Impact factor: 3.477, year: 2009
We study the transition from the gamma-rigid to gamma-soft collective nuclear dynamics across the Casten triangle of the interacting boson model using mean-field techniques and confront the description with the exact diagonalization. We inspect the domain of validity of the SU(3) quasidynamical symmetry inside the Casten triangle and reveal critical behavior within the low-lying excited spectrum due to a degeneracy of beta and gamma vibrations.
Permanent Link: http://hdl.handle.net/11104/0177145
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