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Titolo:
THE COEXISTENCE OF THE INTRUDER VI(13 2), SUPERDEFORMED AND TERMINATING BANDS IN THE A-SIMILAR-TO-135 MASS REGION/
Autore:
AFANASJEV AV; RAGNARSSON I;
Indirizzi:
LUND INST TECHNOL,DEPT MATH PHYS,BOX 118 S-22100 LUND SWEDEN LATVIAN ACAD SCI,NUCL RES CTR LV-2169 RIGA LATVIA
Titolo Testata:
Nuclear physics. A
fascicolo: 2, volume: 608, anno: 1996,
pagine: 176 - 201
SICI:
0375-9474(1996)608:2<176:TCOTIV>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
HIGH-SPIN STATES; ROTATIONAL BANDS; LIFETIME MEASUREMENTS; TRANSITION RATES; IDENTICAL BANDS; 2ND MINIMUM; ND-133; NUCLEI; CE-132; DECAY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
48
Recensione:
Indirizzi per estratti:
Citazione:
A.V. Afanasjev e I. Ragnarsson, "THE COEXISTENCE OF THE INTRUDER VI(13 2), SUPERDEFORMED AND TERMINATING BANDS IN THE A-SIMILAR-TO-135 MASS REGION/", Nuclear physics. A, 608(2), 1996, pp. 176-201

Abstract

The configuration-dependent shell-correction approach with the cranked Nilsson potential is employed for a systematic investigation of the high-spin spectra of the nuclei in the A similar to 135 (Z = 57-61, N = 72-78) mass region, where superdeformed bands have been observed. Main attention is paid to the coexistence of intruder nu i(13/2), superdeformed and terminating bands in the yrast region. Recent developmentsof the formalism allow the identification of the high-j orbitals in each N-shell, for example, the g(9/2) orbitals in the N = 4 shell, after the diagonalization of the cranked Nilsson potential. This turns outto be quite important for the understanding of the high collectivity of the observed bands. It is shown that the equilibrium deformation ofthe superdeformed bands is strongly dependent on the number of the proton holes in the g(9/2) orbitals. With increasing neutron number above N = 75, the intruder nu i(13/2) bands are calculated triaxial, Especially for Z = 57, but also for higher proton numbers, we calculate some coexistent oblate non-collective states which are yrast for specificspin values at I greater than or equal to 40 HBAR.

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Documento generato il 05/12/20 alle ore 03:20:44