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The nuclear structure of 223Fr

AuthorsKurcewicz, W.; Løvhøiden, G.; Thorsteinsen, T. F.; García Borge, María José ; Burke, D. G.; Cronqvist, M.; Gabelmann, H.; Gietz, H.; Hill, P.; Kaffrell, N.; Naumann, R. A.; Nybø, K.; Nyman, G.; Rogowski, J.
KeywordsRn-223 [From Th-232 (P, 5p5n), Mass Separation]
Measured E-gamma, I-gamma, EE, I(ce), Gamma-Gamma-coincidences
Fr-223 deduced levels, ICC, multipolarities, I-pi, rotational bands, dipole moment
Ge, Si(Li) detectors, mini-orange spectrometer
Issue Date30-Mar-1992
CitationNuclear Physics A 539(3): 451-477 (1992)
AbstractThe γ-rays following the β- decay of Rn-223 have been investigated by means of γ-ray singles including multispectrum analysis, and γγ-coincidence measurements using Ge detectors. Multipolarities of 38 transitions in Fr-223 have been established by measuring conversion electrons with a mini-orange electron spectrometer. Most of the observed transitions could be placed in a level scheme comprising 53 excited states of Fr-223. The level structure is interpreted in terms of K(π) = (3/2)± and (1/2)± parity doublet bands, and a second K(π) = (3/2)± higher-lying parity doublet. The experimental data are compared with the theoretical predictions of the reflection-asymmetric rotor model.
Description27 pages, 6 figures, 3 tables.
Publisher version (URL)http://dx.doi.org/10.1016/0375-9474(92)90287-T
Appears in Collections:(CFMAC-IEM) Artículos
(IQFR) Artículos
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