Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Partial dynamical SU(3) symmetry and the nature of the lowest K=0 collective excitation in deformed nuclei - art. no. 061301
Autore:
Leviatan, A; Sinai, I;
Indirizzi:
Hebrew Univ Jerusalem, Racah Inst Phys, IL-91904 Jerusalem, Israel Hebrew Univ Jerusalem Jerusalem Israel IL-91904 -91904 Jerusalem, Israel
Titolo Testata:
PHYSICAL REVIEW C-NUCLEAR PHYSICS
fascicolo: 6, volume: 6006, anno: 1999,
pagine: 1301 -
SICI:
0556-2813(199912)6006:6<1301:PDSSAT>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
INTERACTING-BOSON-APPROXIMATION; PHONON EXCITATION; GAMMA-BAND; ROTATIONAL LIMIT; MODEL; STATES; ER-168; PREDICTIONS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
20
Recensione:
Indirizzi per estratti:
Indirizzo: Leviatan, A Hebrew Univ Jerusalem, Racah Inst Phys, IL-91904 Jerusalem, Israel Hebrew Univ Jerusalem Jerusalem Israel IL-91904 alem, Israel
Citazione:
A. Leviatan e I. Sinai, "Partial dynamical SU(3) symmetry and the nature of the lowest K=0 collective excitation in deformed nuclei - art. no. 061301", PHYS REV C, 6006(6), 1999, pp. 1301

Abstract

We discuss the implications of partial dynamical SU(3) symmetry (PDS) for the structure of the lowest K = 0(+)(K=0(2)) collective excitation in deformed nuclei. We consider an interacting boson model Hamiltonian whose groundand gamma bands have good SU(3) symmetry, while the K=0(2) band is mixed. It is shown that the double-phonon components in the K=02 wave function arise from SU(3) admixtures which, in turn, can be determined from absolute E2rates connecting the K=0(2) and ground bands. An explicit expression is derived for these admixtures in terms of the ratio of K=0(2) and gamma bandhead energies. The SU(3) PDS predictions are compared with existing data and with broken-SU(3) calculations for Er-168. [S0556-2813(99)50711-5].

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/10/20 alle ore 16:09:42