Smooth terminating bands in {sup 112}Te: Particle-hole induced collectivity

Journal Article · Mon Jan 15 00:00:00 EST 2007 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.75.014308· OSTI ID:20990947

Paul, E S; Evans, A O; Boston, A J; Chantler, H J; Nolan, P J; Semple, A T ^[1]; Starosta, K; Chiara, C J; Fossan, D B; Lane, G J; Sears, J M; Vaman, C ^[2]; Devlin, M; LaFosse, D R; Sarantites, D G ^[3]; Fletcher, A M ^[4]; Lee, I Y; Macchiavelli, A O ^[5]; Smith, J F ^[6]; Afanasjev, A V ^[7]

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1. Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE (United Kingdom)
2. Department of Physics and Astronomy, State University of New York at Stony Brook, Stony Brook, New York 11794-3800 (United States)
3. Department of Chemistry, Washington University, St. Louis, Missouri 63130 (United States)
4. Schuster Laboratory, The University of Manchester, Brunswick Street, Manchester M13 9PL (United Kingdom)
5. Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
6. Department of Physics and Astronomy, State University of New York at Stony Brook, Stony Brook, New York 11794-3800, USA (United States)
7. Department of Physics and Astronomy, Mississippi State University, Mississippi 39762, USA (United States)

The Gammasphere spectrometer, in conjunction with the Microball charged-particle array, was used to investigate high-spin states in {sup 112}Te via {sup 58}Ni({sup 58}Ni, 4p{gamma}) reactions at 240 and 250 MeV. Several smooth terminating bands were established, and lifetime measurements were performed for the strongest one using the Doppler-shift attenuation method. Results obtained in the spin range 18-32({Dirac_h}/2{pi}) yield a transition quadrupole moment of 4.0{+-}0.5eb, which corresponds to a quadrupole deformation epsilon{sub 2}=0.26{+-}0.03; this value is significantly larger than the ground-state deformation of tellurium isotopes. It was also possible to extract a transition quadrupole moment for the yrast band in {sup 114}Xe, produced via the 58Ni (58Ni, 2p{gamma}) reaction. A value of 3.0{+-}0.5eb was found in the spin range 16-24({Dirac_h}/2{pi}), which corresponds to a quadrupole deformation epsilon{sub 2}=0.19{+-}0.03. Cranked Nilsson-Strutinsky calculations are used to interpret the results.

• OSTI ID: 20990947
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 75, Issue 1; Other Information: DOI: 10.1103/PhysRevC.75.014308; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
COLLECTIVE MODEL
DEFORMATION
DEFORMED NUCLEI
DOPPLER EFFECT
DSA METHOD
GROUND STATES
HEAVY ION REACTIONS
HIGH SPIN STATES
MASS NUMBER
MEV RANGE 100-1000
NICKEL 58
NUCLEAR ELECTRIC MOMENTS
QUADRUPOLE MOMENTS
QUADRUPOLES
SHELL MODELS
SPIN
TELLURIUM 112
XENON 114
YRAST STATES