LEVEL STRUCTURES OF CE-131,CE-129 OBSERVED IN BETA-DECAY

Authors
GIZON A GENEVEY J BUCURESCU D CATADANIL G GIZON J INCHAOUH J BARNEOUD D VONEGIDY T LIANG CF NYAKO BM PARIS P PENEV I PLOCHOCKI A RUCHOWSKA E UR CA WEISS B ZOLNAI L
Citation
A. Gizon et al., LEVEL STRUCTURES OF CE-131,CE-129 OBSERVED IN BETA-DECAY, Nuclear physics. A, 605(3), 1996, pp. 301-333
Citations number
36
Categorie Soggetti
Physics, Nuclear
Journal title
Nuclear physics. A → ACNP
ISSN journal
03759474
Volume
605
Issue
3
Year of publication
1996
Pages
301 - 333
Database
ISI
SICI code
0375-9474(1996)605:3<301:LSOCOI>2.0.ZU;2-P
Abstract
The low-lying levels of the odd-mass nuclei Ce-131 and Ce-129 have bee n investigated by means of the beta(+)/EC decays of Pr-131g+m and Pr-1 29, respectively, The Pr nuclei were obtained by bombarding Mo-94,Mo-9 6 targets with a 255 MeV Ca-40 beam, The radioactivities produced in t he reactions were transported with a He-jet device and gamma gamma t, X gamma t, e(-)gamma t coincidence measurements were performed. Conver sion electrons were measured with a magnetic spectrometer and transiti on multipolarities were deduced, On-line mass separation was used to s elect the Pr-129 beta-decay. The resulting level schemes of Ce-131,Ce- 129,Ce-127 are discussed in connection with level systematics and calc ulations performed by using the Interacting Boson-Fermion Model (IBFM) .