Alternating parity bands in Fr-218(87) - art. no. 024304

Authors
Debray, ME Cardona, MA Hojman, D Kreiner, AJ Davidson, M Davidson, J Somacal, H Levinton, G Napoli, DR Lenzi, S de Angelis, G De Poli, M Gadea, A Bazzacco, D Rossi-Alvarez, C Medina, N
Citation
Me. Debray et al., Alternating parity bands in Fr-218(87) - art. no. 024304, PHYS REV C, 6202(2), 2000, pp. 4304
Citations number
25
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW C-NUCLEAR PHYSICS
ISSN journal
05562813 → ACNP
Volume
6202
Issue
2
Year of publication
2000
Database
ISI
SICI code
0556-2813(200008)6202:2<4304:APBIF->2.0.ZU;2-4
Abstract
States in doubly odd Fr-218 have been studied using in-beam spectroscopy al pha- gamma- gamma coincidence techniques mainly through the Bi-209(O-18, 2 alpha n) reaction at 94 MeV bombarding energy, using the 8 pi GASP-ISIS spe ctrometer at Legnaro. Fr-218 shows a band structure, with interleaved state s of alternating parities connected by enhanced E1 transitions. Tentative s pin assignment and the relation between the structure of Fr-218 and its iso tone Ac-220 is discussed.