High-spin structure and electromagnetic transition strengths in Cd-104

ISSN
0556-2813
Date Issued
2001
Author(s)
Jungclaus, A.
Yordanov, O.
Galindo, E.
Hausmann, M.
Kast, D.
Lieb, Klaus-Peter
Brant, S.
Krstic, V.
Vretenar, D.
Algora, A.
Brandolini, F.
de Angelis, G.
De Poli, M.
Fahlander, C.
Gadea, A.
Martinez, T.
Napoli, D. R.
Dewald, A.
Peusquens, R.
Tiesler, H.
Gorska, M.
Grawe, H.
Bizzeti, P. G.
Abstract
The recoil-distance Doppler-shift and Doppler-shift attenuation techniques were employed to determine for the first time lifetimes of high-spin states in Cd-104 in the time range 0.3 ps less than or equal to tau less than or equal to1.2 ns. The nuclei were populated using the compound nucleus reaction Ni-58(Cr-50, 4p) and the gamma radiation from their decay was detected with the GASP spectrometer. A total of 34 reduced transition probabilities and limits for 18 further transitions were extracted providing a rich basis for a comparison with theoretical calculations. In addition, the lifetime data contained new information urging for a revision of the published level scheme of Cd-104. In particular, a magnetic dipole band recently established and interpreted as magnetic rotation is shown to he not existing. The new experimental results in Cd-104 are discussed in the frame of the interacting boson plus broken pair model.