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Titolo:
Pigmy and giant dipole states in stable and unstable oxygen isotopes
Autore:
Sagawa, H; Suzuki, T;
Indirizzi:
Univ Aizu, Ctr Math Sci, Fukushima 9658580, Japan Univ Aizu Fukushima Japan 9658580 Ctr Math Sci, Fukushima 9658580, Japan Nihon Univ, Coll Humanities & Sci, Dept Phys, Setagaya Ku, Tokyo 156, Japan Nihon Univ Tokyo Japan 156 Sci, Dept Phys, Setagaya Ku, Tokyo 156, Japan
Titolo Testata:
ACTA PHYSICA HUNGARICA NEW SERIES-HEAVY ION PHYSICS
fascicolo: 1-3, volume: 13, anno: 2001,
pagine: 3 - 9
SICI:
1219-7580(2001)13:1-3<3:PAGDSI>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
CROSS-SECTIONS; NUCLEI; O-18;
Keywords:
dipole strength distribution in oxygen isotopes; large scale shell model calculations; pigmy strength predictions;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
12
Recensione:
Indirizzi per estratti:
Indirizzo: Sagawa, H Univ Aizu, Ctr Math Sci, Fukushima 9658580, Japan Univ Aizu Fukushima Japan 9658580 ci, Fukushima 9658580, Japan
Citazione:
H. Sagawa e T. Suzuki, "Pigmy and giant dipole states in stable and unstable oxygen isotopes", APH NS-HEAV, 13(1-3), 2001, pp. 3-9

Abstract

We have studied dipole states of oxygen isotopes in large scale shell model calculations. The calculated photoreaction cross sections in O-16, O-17 and O-18 give reasonable agreement with experimental observations both in the low energy region below (h) over barw = 15 MeV and in the high energy giant resonance region (15 MeV < (h) over barw less than or equal to 30 MeV). We found that the transition strength below dipole giant resonance ((h) over barw less than or equal to 15 MeV) exhausts about 10% of the classical Thomas-Reiche-Kuhn sum rule and more than 40% of the cluster sum rule in heavier oxygen isotopes than O-17. The predicted Pigmy strengths in O-20 and O-22 are also confirmed by recent Coulomb excitation experiment at GSI.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 23/01/20 alle ore 12:44:04