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Titolo:
Nucleon-pair shell model calculations of the even-even Xe and Ba nuclei
Autore:
Luo, YA; Chen, JQ; Draayer, JP;
Indirizzi:
Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China Nanjing Univ Nanjing Peoples R China 210093 jing 210093, Peoples R China Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China Nankai Univ Tianjin Peoples R China 300071 anjin 300071, Peoples R China Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USA Louisiana State Univ Baton Rouge LA USA 70803 , Baton Rouge, LA 70803 USA
Titolo Testata:
NUCLEAR PHYSICS A
fascicolo: 1-2, volume: 669, anno: 2000,
pagine: 101 - 118
SICI:
0375-9474(20000410)669:1-2<101:NSMCOT>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
INTERACTING BOSON MODEL; DYNAMICAL SYMMETRY MODEL; COLLECTIVE STATES; REGION; BA-134;
Keywords:
nucleon-pair shell model; SD truncation; even Xe; even Ba; mixed symmetry states; collective states;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
50
Recensione:
Indirizzi per estratti:
Indirizzo: Luo, YA Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China Nanjing Univ Nanjing Peoples R China 210093 093, Peoples R China
Citazione:
Y.A. Luo et al., "Nucleon-pair shell model calculations of the even-even Xe and Ba nuclei", NUCL PHYS A, 669(1-2), 2000, pp. 101-118

Abstract

The nucleon-pair shell model, truncated to an SD subspace, is applied to Xe128-134 and Ba130-136. The spectra, eigenstates, and electromagnetic transition strengths of these nuclei, which are known to display O(6) symmetry, an described in terms of a three-parameter Hamiltonian. Agreement with experiment is good, in particular, mixed-symmetry configurations and the upwardshift and fragmentation of the M1 strength with increasing neutron numbersemerges naturally. The results show that the SD subspace approximation improves with the number of pairs. (C) 2000 Elsevier Science B.V. All rights reserved.

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Documento generato il 29/11/20 alle ore 16:30:22