Digital.CSIC > Ciencia y Tecnologías Físicas > Centro de Física Miguel A. Catalán - Instituto de Estructura de la Materia (CFMAC-IEM) > (CFMAC-IEM) Artículos >





Closed Access item Measurements of multipolarities in 225Ra

Authors:Andersen, E.
García Borge, María José
Burke, D. G.
Gietz, H.
Hill, P.
Kaffrell, N.
Kurcewicz, W.
Løvhøiden, G.
Mattsson, S.
Naumann, R. A.
Nybø, K.
Nyman, G.
Thorsteinsen, T. F.
Keywords:Radioactivity 225Fr (β-) [from Th, U (p, spallation)], Measured Ee, I(ce), γγ-, eγ-coincidences, 225Ra deduced levels, ICC, multipolarities, I(π), UC2 and ThC2 targets, On-line mass separation, Ge, Si(Li) detectors, Mini-orange spectrometer
Issue Date:9-Jan-1989
Citation:Nuclear Physics A 491(2): 290-300 (1989)
Abstract:Multipolarities of 45 transitions in 225Ra have been established by investigating the radiations associated with the β− decay of 225Fr. The study includes β−, e− and γ-singles spectra, e−γ- and γγ-coincidence measurements. The conversion electrons were measured with a mini-orange electron spectrometer, and the γ-spectra with Ge detectors. The multipolarities obtained from the measured conversion coefficients support the assignments of spin-parity doublets thus giving evidence for a stable octupole deformation of this nucleus. The negative parity of the 394.2 keV level established in the present work indicates that this level is a candidate for the parity-doublet partner of the (5/2)+ state at 236.3 keV.
Description:11 pages, 3 tables, 2 figures.
Publisher version (URL):http://dx.doi.org/10.1016/0375-9474(89)90704-5
Appears in Collections:(CFMAC-IEM) Artículos
(IQFR) Artículos

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.