Transition strengths in odd-odd {sup 86}Nb

Journal Article · Tue Aug 01 04:00:00 EDT 2000 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.62.024316· OSTI ID:20217259

Wiedeking, M ^[1]; Kaye, R A ^[1]; Solomon, G Z ^[1]; Tabor, S L ^[1]; Doering, J ^[2]; Johns, G D ^[3]; Cristancho, F ^[4]; Devlin, M ^[5]; Lerma, F ^[5]; Sarantites, D G ^[5]

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1. Department of Physics, Florida State University, Tallahassee, Florida 32306 (United States)
2. Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556 (United States)
3. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
4. Departamento de Fisica, Universidad Nacional de Colombia, Bogota, (Colombia)
5. Chemistry Department, Washington University, St. Louis, Missouri 63130 (United States)

High angular momentum states in odd-odd {sup 86}Nb were populated through the {sup 58}Ni({sup 32}S,3pn) reaction at 135 MeV. Recoiling {sup 86}Nb nuclei were stopped in a thick Ta backing. Prompt multi-{gamma} coincidences with evaporated charged particles were detected using the full array of Gammasphere and the Microball. Mean lifetimes of 51 levels in {sup 86}Nb were measured using the Doppler-shift attenuation method. Strongly alternating magnetic dipole transition strengths were observed in the yrast positive-parity bands. Most of the transition quadrupole moments inferred from the lifetimes lie in the range of 1 to 2.7 e b, which would correspond to quadrupole deformations {beta}{sub 2} of 0.10 to 0.27 in a rotational model. Comparison with Hartree-Fock-Bogoliubov cranking calculations suggests triaxial to oblate shapes. (c) 2000 The American Physical Society.

• OSTI ID: 20217259
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 2 Vol. 62; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
EXPERIMENTAL DATA
LIFETIME
NEUTRONS
NICKEL 58 TARGET
NIOBIUM 86
PROTONS
SULFUR 32 REACTIONS
TRANSITION AMPLITUDES
YRAST STATES