Evidence of nontermination of collective rotation near the maximum angular momentum in {sup 75}Rb

Journal Article · Wed Dec 15 00:00:00 EST 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.82.061303· OSTI ID:21499241

Davies, P J; Wadsworth, R; Jenkins, D G; Johnston-Theasby, F L; Joshi, P ^[1]; Afanasjev, A V ^[2]; Andreoiu, C; Finlay, P; Garrett, P E; Grinyer, G F; Hyland, B; Phillips, A A; Schumaker, M A; Svensson, C E; Valiente-Dobon, J J ^[3]; Austin, R A. E. ^[4]; Carpenter, M P; Greene, J; Moore, F; Mukherjee, G ^[5]

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1. Department of Physics, University of York, Heslington, York YO10 5DD (United Kingdom)
2. Department of Physics and Astronomy, Mississippi State University, Mississippi 39762 (United States)
3. Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1 (Canada)
4. Department Physics and Astronomy, McMaster University, Hamilton, Ontario L8S 4K1 (Canada)
5. Physics Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439 (United States)

Two of the four known rotational bands in {sup 75}Rb were studied via the {sup 40}Ca({sup 40}Ca,{alpha}p){sup 75}Rb reaction at a beam energy of 165 MeV. Transitions were observed up to the maximum spin I{sub max} of the assigned configuration in one case and one-transition short of I{sub max} in the other. Lifetimes were determined using the residual Doppler shift attenuation method. The deduced transition quadrupole moments show a small decrease with increasing spin, but remain large at the highest spins. The results obtained are in good agreement with cranked Nilsson-Strutinsky calculations, which indicate that these rotational bands do not terminate, but remain collective at I{sub max}.

• OSTI ID: 21499241
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 82, Issue 6; Other Information: DOI: 10.1103/PhysRevC.82.061303; (c) 2010 The American Physical Society; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA DECAY
BEAMS
CALCIUM 40 REACTIONS
CALCIUM 40 TARGET
CONFIGURATION
DSA METHOD
LIFETIME
MEV RANGE 100-1000
PROTON-EMISSION DECAY
QUADRUPOLE MOMENTS
ROTATIONAL STATES
RUBIDIUM 75
SPIN
ANGULAR MOMENTUM
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
COUNTING TECHNIQUES
DECAY
ENERGY LEVELS
ENERGY RANGE
EXCITED STATES
HEAVY ION REACTIONS
INTERMEDIATE MASS NUCLEI
ISOTOPES
MEV RANGE
NUCLEAR DECAY
NUCLEAR REACTIONS
NUCLEI
ODD-EVEN NUCLEI
PARTICLE PROPERTIES
RADIOISOTOPES
RUBIDIUM ISOTOPES
SECONDS LIVING RADIOISOTOPES
TARGETS