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The IBM description of triaxial nuclei
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SYSNO ASEP 0348493 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název The IBM description of triaxial nuclei Tvůrce(i) Thiamová, Gabriela (UJF-V) Zdroj.dok. European Physical Journal A. - : Springer - ISSN 1434-6001
Roč. 45, č. 1 (2010), s. 81-90Poč.str. 10 s. Jazyk dok. eng - angličtina Země vyd. DE - Německo Klíč. slova INTERACTING-BOSON MODEL ; COLLECTIVE MODEL ; PHASE-TRANSITIONS Vědní obor RIV BG - Jaderná, atomová a mol. fyzika, urychlovače CEZ AV0Z10480505 - UJF-V (2005-2011) UT WOS 000279369600010 DOI 10.1140/epja/i2010-10982-2 Anotace 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to the availability of the SO(5) Clebsch-Gordan (CG) coefficients, computed in floating-point arithmetic (T.A. Welsh, unpublished ( 2008)).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. Pracoviště Ústav jaderné fyziky Kontakt Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Rok sběru 2011
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