First excited states in doubly-odd {sup 110}Sb: Smooth band termination in the A {approx} 110 region

Conference · Fri Nov 01 04:00:00 EST 1996

OSTI ID:416942

Lane, G J; Fossan, D B; Thorslund, I ^[1]

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1. State Univ. of New York, Stony Brook, NY (United States). Dept. of Physics; and others

Excited states have been identified for the first time in {sup 110}Sb in a comprehensive series of {gamma}-spectroscopy experiments, including recoil-mass and neutron-field measurements. Three high-spin decoupled bands with configurations based on 2p-2h excitations across the Z = 50 shell gap, are observed to show the features of smooth band termination, the first such observation in an odd-odd nucleus. The yrast intruder band has been connected to the low spin levels and is tentatively identified up to its predicred termination at I{sup {pi}} = (45{sup +}). Detailed configuration assignments are made through comparison with configuration-dependent cranked Nilsson-Strutinsky calculations; excellent agreement with experiment is obtained. The systematic occurrence of smoothly terminating bands in the neighboring isotopes is discussed.

• Research Organization: Argonne National Lab., IL (United States)
• Sponsoring Organization: USDOE Office of Energy Research, Washington, DC (United States); National Science Foundation, Washington, DC (United States); United Kingdom Engineering and Physical Sciences Research Council (United Kingdom); Deutsche Forschungsanstalt fuer Luft- und Raumfahrt e.V. (DLR), Bonn (Germany). Projekttraegerschaften fuer das BMBF - Umwelttechnik; Swedish National Science Research Council (Sweden)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 416942
• Report Number(s): ANL/PHY/CP--90491; CONF-9607156--5; ON: DE97000352
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ANTIMONY 108
ANTIMONY 109
ANTIMONY 110
ANTIMONY 111
EXCITED STATES
TIN 108
YRAST STATES