ISSN:
1434-601X
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Physik
Notizen:
Abstract The decay of149Pr (T 1/2=2.2 min) has been studied using the two fission product separators JOSEF and LOHENGRIN to produce the149Pr nucleus. A level scheme for149Nd has been established. Theβ-branching and logft values for the excited levels were deduced from the analysis ofγ-intensity balances. Furthermore, the spins and parities for most of the excited states observed were obtained from the comparison between the present work, the neutron capture results and the pick-up reactions. The positive parity levels have been described with the Nilsson model with Coriolis andΔN=2 interactions included. The properties of the negative parity states cannot be explained as easily; however, it has been attempted to extract the structure of the ground state $$(I^\pi = \tfrac{5}{2}^ - )$$ and the first excited states $$(I^\pi = \tfrac{7}{2}^ - and\tfrac{3}{2}^ - )$$ .
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF01414898
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