Transition strengths in {sup 79}Rb

Journal Article · Fri Oct 01 04:00:00 EDT 1993 · Bulletin of the American Physical Society

OSTI ID:387259

Holcomb, J W; Doering, J; Glasmacher, T ^[1]

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1. and others

High angular momentum states in {sup 79}Rb were populated via the {sup 63}Cu({sup 19}F,2pn){sup 79}Rb reaction. The 65 MeV {sup 19}F beams was provided by the Florida State University FN Tandem accelerator. Prompt {gamma}-{gamma} coincidences and angular distributions were measured. A highflying band structure dominated by dipole transitions has been observed similar to those seen in neighboring odd-A nuclei. Decay from the bandhead is to both positive- and negative-parity states with equal intensity. Also, angular distributions were measured to confirm the negative sign of the mixing ratios for {Delta}J = 1 transitions in the yrast positive-parity band as implied by the large DCO ratios. This has often been associated with an oblate deformation; however, Woods-Saxon cranking calculations predict a prolate deformation. The apparent contradiction has been resolved through particle-rotor model calculations. These calculations also reproduced the signature splitting and energy spacings of this band as well as the yrast negative-parity cascades.

• OSTI ID: 387259
• Report Number(s): CONF-931044--
• Journal Information: Bulletin of the American Physical Society, Journal Name: Bulletin of the American Physical Society Journal Issue: 9 Vol. 38; ISSN BAPSA6; ISSN 0003-0503
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
COPPER 63 TARGET
FLUORINE 19 REACTIONS
HIGH SPIN STATES
NUCLEAR STRUCTURE
RUBIDIUM 79
TRANSITION AMPLITUDES