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

0346484 - ÚJF 2011 RIV US eng J - Článek v odborném periodiku
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
Grant CEP: GA ČR GA202/09/0084
Výzkumný záměr: CEZ:AV0Z10480505
Klíčová slova: NUCLEAR COLLECTIVE MODELS * QUASI-DYNAMIC SYMMETRY * PHASE-TRANSITIONS
Kód oboru RIV: BE - Teoretická fyzika
Impakt faktor: 3.416, rok: 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.
Trvalý link: http://hdl.handle.net/11104/0187505