High-K bands in the {sup 166}Yb region

Journal Article · Thu Apr 01 04:00:00 EST 1993 · Bulletin of the American Physical Society

OSTI ID:243787

Oliveir, J R.B.; Deleplanque, M A; Diamond, R M ^[1]

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1. and others

New {Delta}I = 1 bands with relatively high B(M1)/B(E2) branching ratios were found in Yb isotopes. The [505]11/2{sup {minus}} neutron state from the top of the h{sub 11/2} subshell in most likely involved in the configuration of such bands, since it is the only high-K orbital near the Fermi surface in that mass region. The [505]11/2{sup {minus}} band in {sup 167}Yb, previously known up to I = 19/2 is extended up to I = 35/2. Two new bands, tentatively assigned (h{sub 11/2}){sup {minus}1} x i{sub 13/2} configuration, one in {sup 166}Yb and another in {sup 168}Yb are observed from the {sup 124}Sn({sup 48}Ca,xn) reaction at 225 at 210 MeV. Both bands have constant alignment in the frequency range {h_bar}{omega} = 150 - 350 keV. The new bands are expected to provide good tests of the recently developed tilted cranking formalism.

• DOE Contract Number: AC03-76SF00098
• OSTI ID: 243787
• Report Number(s): CONF-9304297--
• Journal Information: Bulletin of the American Physical Society, Journal Name: Bulletin of the American Physical Society Journal Issue: 2 Vol. 38; ISSN 0003-0503; ISSN BAPSA6
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
HIGH SPIN STATES
YTTERBIUM 166
YTTERBIUM 167
YTTERBIUM 168