Magnetic dipole sequences in {sup 83}Rb

Journal Article · Thu Oct 15 04:00:00 EDT 2009 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.80.044305· OSTI ID:21293918

Schwengner, R; Schnare, H; Wagner, A; Doenau, F ^[1]; Rainovski, G ^[2]; Frauendorf, S ^[1]; Jungclaus, A ^[3]; Hausmann, M; Lieb, K P ^[4]; Yordanov, O ^[5]; Napoli, D R; De Angelis, G; Axiotis, M ^[6]; Marginean, N ^[7]; Brandolini, F; Alvarez, C Rossi ^[8]

---

1. Institut fuer Strahlenphysik, Forschungszentrum Dresden-Rossendorf, D-01314 Dresden (Germany)
2. Faculty of Physics, University of Sofia, BG-1164 Sofia (Bulgaria)
3. Instituto de Estructura de la Materia, Consejo Superior de Investigaciones Cientificas, E-28006 Madrid (Spain)
4. II. Physikalisches Institut, Universitaet Goettingen, D-37073 Goettingen (Germany)
5. Institute for Nuclear Research and Nuclear Energy, BAS, BG-1784 Sofia (Bulgaria)
6. INFN, Laboratori Nazionali di Legnaro, I-35020 Legnaro (Italy)
7. Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest, P. O. Box MG-6 (Romania)
8. INFN and Dipartimento di Fisica dell'Universita di Padova, I-35131 Padova (Italy)

High-spin states in {sup 83}Rb were populated in the reaction {sup 11}B+{sup 76}Ge at beam energies of 45 and 50 MeV. {gamma} rays were detected with the spectrometer GASP. The level scheme of {sup 83}Rb was extended up to 13.9 MeV. Mean lifetimes of 23 levels were determined using the Doppler-shift-attenuation method. Among the bands newly established is a sequence comprising intense M1 transitions and crossover E2 transitions. This sequence turns out to be irregular and thus shows that magnetic rotation as observed in the neighboring odd-odd isotopes is not realized in this odd-even nuclide. Excited states in {sup 83}Rb were interpreted in terms of the shell model using the model space {pi}(0f{sub 5/2},1p{sub 3/2},1p{sub 1/2},0g{sub 9/2}) {nu}(1p{sub 1/2},0g{sub 9/2}). The configurations predicted for the negative-parity M1 sequence reproduce the M1 transition strengths fairly well.

• OSTI ID: 21293918
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 4 Vol. 80; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BEAMS
BORON 11 TARGET
CONFIGURATION
DSA METHOD
E2-TRANSITIONS
EXCITED STATES
GAMMA RADIATION
GERMANIUM 76
HIGH SPIN STATES
LIFETIME
M1-TRANSITIONS
MAGNETIC DIPOLES
MEV RANGE 10-100
PARITY
ROTATION
RUBIDIUM 83
SHELL MODELS
SPECTROMETERS