A new mu s isomer in Sb-136 produced in the projectile fission of U-238

Authors
Mineva, AN Hellstrom, M Bernas, M Gerl, J Grawe, H Pfutzner, M Regan, PH Rejmund, M Rudolph, D Becker, F Bingham, CR Enqvist, T Fogelberg, B Gausemel, H Geissel, H Genevey, J Gorska, M Grzywacz, R Hauschild, K Janas, Z Kojouharov, I Kopatch, Y Korgul, A Korten, W Kurcewicz, J Lewitowicz, M Lucas, R Mach, H Mandal, S Mayet, P Mazzocchi, C Pinston, JA Podolyak, Z Schaffner, H Schlegel, C Schmidt, K Summerer, K Wollersheim, HJ
Citation
An. Mineva et al., A new mu s isomer in Sb-136 produced in the projectile fission of U-238, EUR PHY J A, 11(1), 2001, pp. 9-13
Citations number
26
Categorie Soggetti
Physics
Journal title
EUROPEAN PHYSICAL JOURNAL A
ISSN journal
14346001 → ACNP
Volume
11
Issue
1
Year of publication
2001
Pages
9 - 13
Database
ISI
SICI code
1434-6001(200105)11:1<9:ANMSII>2.0.ZU;2-N
Abstract
The neutron-rich isotope Sb-136 has been produced following the relativisti c projectile fission of U-238 in an experiment performed at the Fragment Se parator at GSI, Darmstadt. Delayed gamma -ray spectroscopy of the fission p roducts has been performed after isotope separation. A new isomeric state i n Sb-136 has been populated, and its lifetime measured as T-1/2 = 565(50) n s. Realistic and empirical shell-model calculations have been performed and are compared to the experimental observables.