Lifetime measurement of candidate chiral doublet bands in the {sup 103,104}Rh isotopes with the recoil-distance Doppler-shift method in inverse kinematics

Journal Article · Mon Sep 15 04:00:00 EDT 2008 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.78.031302· OSTI ID:21192172

Suzuki, T ^[1]; Rainovski, G ^[2]; Koike, T ^[3]; Ahn, T; Costin, A ^[4]; Carpenter, M P; Janssens, R V. F.; Lister, C J; Zhu, S ^[5]; Danchev, M ^[6]; Dewald, A ^[7]; Joshi, P; Wadsworth, R ^[8]; Moeller, O ^[7]; Pietralla, N ^[4]; Shinozuka, T ^[1]; Timar, J ^[9]; Vaman, C ^[10]

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1. Cyclotron and Radio-isotope Center, Tohoku University, Sendai 980-8578 (Japan)
2. St. Kliment Ohridski University of Sofia, Sofia 1164 (Bulgaria)
3. Department of Physics, Tohoku University, Sendai 980-8577 (Japan)
4. Department of Physics and Astronomy, SUNY, Stony Brook, New York 11794-3800 (United States)
5. Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
6. Department of Physics, University of Tennessee Knoxville, Tennessee 37996 (United States)
7. Institute fuer Kernphysik der Universitaet zu Koeln, D-50937 Koeln (Germany)
8. Department of Physics, University of York, Heslington YO10 5DD (United Kingdom)
9. Institute of Nuclear Research (ATOMKI), Pf. 51, 4001 Debrecen (Hungary)
10. National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 (United States)

Lifetimes of chiral candidate structures in {sup 103,104}Rh were measured using the recoil distance Doppler-shift method. The Gammasphere detector array was used in conjunction with the Cologne plunger device. Excited states of {sup 103,104}Rh were populated by the {sup 11}B({sup 96}Zr,4n){sup 103}Rh and {sup 11}B({sup 96}Zr,3n){sup 104}Rh fusion-evaporation reactions in inverse kinematics. Three and five lifetimes of levels belonging to the proposed chiral doublet bands are measured in {sup 103}Rh and {sup 104}Rh, respectively. The previously observed even-odd spin dependence of the B(M1)/B(E2) values is caused by the variation in the B(E2) values, whereas the B(M1) values decrease as a function of spin.

• OSTI ID: 21192172
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 3 Vol. 78; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BORON 11 TARGET
CHIRALITY
DOPPLER EFFECT
E2-TRANSITIONS
EVAPORATION
EXCITED STATES
GAMMA DETECTION
LIFETIME
M1-TRANSITIONS
NEUTRON EMISSION
NUCLEAR REACTIONS
RECOILS
RHODIUM 103
RHODIUM 104
SPECTRAL SHIFT
SPIN
THERMONUCLEAR REACTIONS
ZIRCONIUM 96