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| Title: | The nuclear structure of Th-229 |
Authors: | Gulda, K.; Kurcewicz, W.; Aas, A. J.; García Borge, María José CSIC ORCID; Burke, D. G.; Fogelberg, B.; Grant, I. S.; Hagebø, E.; Kaffrell, N.; Kvasil, J.; Løvhøiden, G.; Mach, H.; Mackova, A.; Martínez Pérez, Trinitario; Nyman, G.; Rubio, Berta CSIC ORCID; Taín, José Luis CSIC ORCID; Tengblad, Olof CSIC ORCID ; Thorsteinsen, T. F. | Keywords: | Radioactivity Th-229 from decay chain of Fr-229, Fr-229 from Th-232(p,4p) and U-238(p,6p4n) Mass separation Measured E-γ, I-γ, Ee, I(ce), T(1/2), ATD βγγ(t), eγ-coincidence, γγ-coincidence Th-229 deduced levels, ICC, multipolarities, I-π, rotational bands, B(XL), dipole moments Ge, Si(Li) Plastic BaF2 detectors Mini-orange spectrometer [PACS] Properties of nuclei; nuclear energy levels [PACS] Electromagnetic transitions [PACS] γ transitions and level energies [PACS] Internal conversion and extranuclear effects (including Auger electrons and internal bremsstrahlung) |
Issue Date: | 20-May-2002 | Publisher: | Elsevier | Citation: | Nuclear Physics A 703(1-2): 45–69 (2002) | Abstract: | The γ-rays following the β- decay of Ac-229 have been investigated by means of γ-ray singles and γγ-coincidence measurements using Ge detectors. Multipolarities of 40 transitions in Th-229 have been established by measuring conversion electrons with a mini-orange electron spectrometer. The half-lives of the 146.35, 164.53 and 261.96 keV levels have been measured using the advanced time delayed betagammagamma(t) method. The low-lying states in Th-229 and observed transition rates have been interpreted within the quasiparticle-phonon model with inclusion of Coriolis coupling. Two octupole correlated parity partner bands, with K-π = 5/2(±) and K-π = 3/2(±), were identified in Th-229. | Description: | 25 pages, 5 tables, 9 figures.-- PACS nrs.: 21.10.-k; 23.20.-g; 23.20.Lv; 23.20.Nx.-- Available online Dec 5, 2001. | Publisher version (URL): | http://dx.doi.org/10.1016/S0375-9474(01)01456-7 | URI: | http://hdl.handle.net/10261/9729 | DOI: | 10.1016/S0375-9474(01)01456-7 | ISSN: | 0375-9474 |
| Appears in Collections: | (CFMAC-IEM) Artículos (IFIC) Artículos |
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