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The IBM description of triaxial nuclei
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SYSNO ASEP 0348493 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title The IBM description of triaxial nuclei Author(s) Thiamová, Gabriela (UJF-V) Source Title European Physical Journal A. - : Springer - ISSN 1434-6001
Roč. 45, č. 1 (2010), s. 81-90Number of pages 10 s. Language eng - English Country DE - Germany Keywords INTERACTING-BOSON MODEL ; COLLECTIVE MODEL ; PHASE-TRANSITIONS Subject RIV BG - Nuclear, Atomic and Molecular Physics, Colliders CEZ AV0Z10480505 - UJF-V (2005-2011) UT WOS 000279369600010 DOI 10.1140/epja/i2010-10982-2 Annotation Recently, interacting boson model (IBM) calculations, in the O(6) basis up to the seniority quantum number v(max) = 40, were made possible thanks to the availability of the SO(5) Clebsch-Gordan (CG) coefficients, computed in floating-point arithmetic (T.A. Welsh, unpublished ( 2008)). In this paper we have made use of these CG coefficients to extend the IBM to situations where triaxial deformation is present. Such a description has been considered in the algebraic collective model (ACM) which is an algebraic version of the Bohr model. To describe triaxiality in the ACM a term proportional to cos(2) 3 gamma. must be included in the Hamiltonian. We show that, in the IBM, this can be achieved by including a term quadratic in ((Q) over cap circle times (Q) over cap circle times ($) over cap)(0), which is an IBM image of the term cos(2) 3 gamma. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2011
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