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First observation of excited states in the neutron deficient nuclei Os-164and Os-166 - art. no. 067301

Authors

King, SL Page, RD Simpson, J Keenan, A Amzal, N Chewter, AJ Cocks, JFC Cullen, DM Dorvaux, O Greenlees, PT Helariutta, K Jones, P Joss, DT Julin, R Juutinen, S Kankaanpaa, H Kettunen, H Kuusiniemi, P Leino, M Lemmon, RC Muikku, M Nieminen, P Savelius, A Shepherd, SL Smith, MB Taylor, MJ Uusitalo, J

Citation

Sl. King et al., First observation of excited states in the neutron deficient nuclei Os-164and Os-166 - art. no. 067301, PHYS REV C, 6206(6), 2000, pp. 7301

Citations number

Categorie Soggetti

Physics

Journal title

PHYSICAL REVIEW C

ISSN journal

05562813 → ACNP

Volume

6206

Issue

Year of publication

2000

Database

ISI

SICI code

0556-2813(200012)6206:6<7301:FOOESI>2.0.ZU;2-F

Abstract

Excited states have been observed for the first time in the neutron deficie nt nuclei Os-166 and Os-164. The nuclei were produced using the reactions C d-106(Cu-63,p2n) Os-166, Sn-112(Ni-58,2p,2n) Os-166, and Cd-106(Ni-60,2n)Os -164 at beam energies of 292, 286, and 257 MeV, respectively. The gamma ray s emitted by Os-166 and Os-164 were identified by correlating the associate d recoil evaporation residues with their subsequent characteristic a decays . The deduced level schemes indicate that Os-166 and Os-164 continue the tr end of decreasing deformation moving away from the N = 104 midshell. The le vel energy systematics of the low-spin states are presented.