1. $\alpha$ -decay spectroscopy of light odd-odd Bi isotopes - I: 188,190Bi nuclei
- Author
-
S. Saro, C. Moore, P. Van Duppen, S. Hofmann, Birgit Kindler, A. Lavrentiev, M. Matos, Dieter Ackermann, A. Kleinböhl, H. Schaffner, P. Cagarda, S. Reshitko, J. Gerl, C. Schlegel, K. Van de Vel, D. Karlgren, Mark Huyse, Kristiaan Heyde, R. D. Page, I. Kojouharov, A. Keenan, H. J. Boardman, C.D. O'Leary, Andrei Andreyev, G. Münzenberg, F. P. Heßberger, Bettina Lommel, Michael Taylor, L. Weissman, Matti Leino, S. Antalic, and Heikki Kettunen
- Subjects
Nuclear physics ,Excitation function ,Physics ,Nuclear and High Energy Physics ,Recoil ,Excited state ,Hadron ,Nuclear fusion ,Neutron ,Alpha decay ,Atomic physics ,Nuclear Experiment ,Spectroscopy - Abstract
Detailed fine-structure $\alpha$ -decay studies of 188,190Bi were performed using the complete-fusion reactions of 50,52Cr ions with a 142Nd target at the velocity filter SHIP. The evaporation residues were separated in-flight and subsequently identified on the basis of recoil- $\alpha$ , recoil- $\alpha$ - $\gamma$ /X-ray and excitation function measurements. Improved data on the $\alpha$ -decay of 188,190Bi were obtained and a number of new low-lying excited states in the daughters 184,186Tl were observed. An intruder, presumably 10- state was identified in 184Tl, extending the systematics of such states in the odd-odd Tl nuclei beyond the neutron mid-shell at N = 104. Some technical aspects of experiment at recoil separators are also discussed.
- Published
- 2003