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Low-lying levels of Re-188 nucleus from gamma gamma-coincidence measurements
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SYSNO ASEP 0351121 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Low-lying levels of Re-188 nucleus from gamma gamma-coincidence measurements Author(s) Balodis, M. (LT)
Tomandl, Ivo (UJF-V) RID, ORCID, SAI
Bondarenko, V. (LT)
Simonova, L. (LT)
Krasta, T. (LV)
Berzins, J. (LV)Source Title Nuclear Physics. A. - : Elsevier - ISSN 0375-9474
Roč. 847, 3-4 (2010), s. 121-148Number of pages 28 s. Language eng - English Country NL - Netherlands Keywords NUCLEAR REACTION Re-187(n, gamma) ; E = thermal ; measured E-gamma Subject RIV BG - Nuclear, Atomic and Molecular Physics, Colliders R&D Projects GA202/03/0891 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z10480505 - UJF-V (2005-2011) UT WOS 000283955700001 DOI 10.1016/j.nuclphysa.2010.07.007 Annotation Low-high and low-low energy gamma gamma-coincidences, following the Re-187(n, gamma) Re-188 reaction with thermal neutrons, have been measured. Spectra have been recorded in the energy range from 50 to 2600 keV, and from 4500 to 6500 keV. The earlier known Re-188 level scheme is corrected and extended up to similar to 800 keV excitation energy and 62 levels by including 20 new levels. For 11 levels, the earlier interpretation has been changed. The complete level scheme is presented for up to similar to 400 keV energy and spins <= 5. Core plus two-quasiparticles model calculations have been performed. Some Re-188 two-quasiparticle states display features indicating the nuclear shape phase transition from axial-deformation to gamma-soft form. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2011
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