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Prolate-Spherical Shape Coexistence at N=28 in S-44
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SYSNO ASEP 0347718 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Prolate-Spherical Shape Coexistence at N=28 in S-44 Author(s) Force, C. (FR)
Grévy, S. (FR)
Gaudefroy, L. (FR)
Sorlin, O. (FR)
Caceres, L. (FR)
Rotaru, F. (RO)
Mrázek, Jaromír (UJF-V) RID, ORCID, SAI
Achouri, N. L. (FR)
Angelique, J. C. (FR)
Azaiez, F. (FR)
Bastin, B. (FR)
Borcea, R. (RO)
Buta, A. (RO)
Daugas, J. M. (FR)
Dlouhý, Zdeněk (UJF-V)
Dombradi, Z. (HU)
De Oliveira, F. (FR)
Negoita, F. (FR)
Peniozhkevich, Y. (RU)
Saint-Laurent, M. G. (FR)
Sohler, D. (HU)
Stanoiu, M. (RO)
Stefan, I. (FR)
Stodel, C. (FR)
Nowacki, F. (FR)Source Title Physical Review Letters. - : American Physical Society - ISSN 0031-9007
Roč. 105, č. 10 (2010), 102501/1-102501/4Number of pages 4 s. Language eng - English Country US - United States Keywords ELECTRIC-MONOPOLE TRANSITIONS ; SHELL CLOSURE ; O-2(+) STATE Subject RIV BG - Nuclear, Atomic and Molecular Physics, Colliders CEZ AV0Z10480505 - UJF-V (2005-2011) UT WOS 000281452000005 DOI 10.1103/PhysRevLett.105.102501 Annotation The structure of S-44 has been studied by using delayed gamma and electron spectroscopy. The decay rates of the 0(2)(+) isomeric state to the 2(1)(+) and 0(1)(+) states, measured for the first time, lead to a reduced transition probability B(E2: 2(1)(+) --> 0(2)(+)) = 8.4(26) e(2) fm(4) and a monopole strength rho(2)(E0: 0(2)(+) --> 0(1)(+)) = 8.7(7) x 10(-3). Comparisons to shell model calculations point towards prolate-spherical shape coexistence, and a two-level mixing model is used to extract a weak mixing between the two configurations. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2011
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