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Titolo:
IBFM2 DESCRIPTION OF ODD XE AND CA ISOTOPES
Autore:
YOSHIDA N; GELBERG A; OTSUKA T; WIEDENHOVER I; SAGAWA H; VONBRENTANO P;
Indirizzi:
KANSAI UNIV,FAC INFORMAT TAKATSUKI OSAKA 56911 JAPAN UNIV COLOGNE,INST KERNPHYS D-50937 COLOGNE GERMANY UNIV TOKYO,DEPT PHYS TOKYO 113 JAPAN UNIV AIZU,CTR MATH SCI AIZU WAKAMATSU 965 JAPAN
Titolo Testata:
Nuclear physics. A
fascicolo: 1-2, volume: 619, anno: 1997,
pagine: 65 - 87
SICI:
0375-9474(1997)619:1-2<65:IDOOXA>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
BOSON-FERMION MODEL; NEGATIVE-PARITY STATES; PLUS PARTICLE DESCRIPTION; BA ISOTOPES; MULTILEVEL CALCULATIONS; GAMMA-DEFORMATION; MASS NUCLEI; A NUCLEI; XE-125; REGION;
Keywords:
ALGEBRAIC MODEL; CALCULATED ENERGIES; CALCULATED BRANCHING RATIOS; CALCULATED TRANSITION MULTIPOLARITIES; COMPARISON WITH EXPERIMENT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
46
Recensione:
Indirizzi per estratti:
Citazione:
N. Yoshida et al., "IBFM2 DESCRIPTION OF ODD XE AND CA ISOTOPES", Nuclear physics. A, 619(1-2), 1997, pp. 65-87

Abstract

Excitation energies, branching ratios and E2/M1 mixing ratios of the negative-parity states in Xe-125,Xe-127 and Cs-125,Cs-127,Cs-129 have been calculated by using the proton-neutron Interacting Boson Fermion Model (IBFM2). A good agreement with the experiment has been obtained. The sensitivity of the calculated observables to changes in model parameters is discussed and the results are compared with those obtained from the IBFM1, We examine a symmetry of the Hamiltonian with respect to the change of sign of the parameters chi(pi), chi(nu), and Gamma. The different behaviours of the odd Xe and Cs isotopes arise from the different position of the proton and neutron Fermi levels, In particular the exchange term of the Hamiltonian in Cs-125,Cs-127,Cs-129 can be neglected. (C) 1997 Elsevier Science B.V.

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Documento generato il 25/11/20 alle ore 07:08:01