Observation of Octupole Structures in Radon and Radium Isotopes and Their Contrasting Behavior at High Spin

Journal Article · Tue Apr 01 04:00:00 EST 1997 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.78.2920· OSTI ID:490209

Cocks, J; Butler, P; Cann, K; Greenlees, P; Jones, G ^[1]; Asztalos, S; Clark, R; Deleplanque, M; Diamond, R; Fallon, P; Lee, I; Macchiavelli, A; MacLeod, R; Stephens, F ^[2]; Bhattacharyya, P; Zhang, C ^[3]; Broda, R; Fornal, B ^[4]; Jones, P; Julin, R ^[5] ; Lauritsen, T ^[6]; Smith, J ^[7]

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1. Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 3BX (United Kingdom)
2. Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720 (United States)
3. Chemistry Department, Purdue University, West Lafayette, Indiana 47907 (United States)
4. Institute of Nuclear Physics, Radzikowskiego 152, PL-31-342 Krakow (Poland)
5. Department of Physics, University of Jyvaeskylae, FIN-40351 Jyvaeskylae (Finland)
6. Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
7. State University of New York, Stony Brook, New York, New York 11794-3800 (United States)

Multinucleon transfer reactions have been used, for the first time, to populate high-spin bands of alternating parity states in {sup 218,220,222}Rn and {sup 222,224,226}Ra. The behavior of the angular momentum alignment with rotational frequency for the Rn isotopes is very different when compared with Ra and Th isotopes with N{approx}134, indicating a transition from octupole vibrational to stable octupole deformation. Throughout the measured spin range the values of {vert_bar}D{sub 0}/Q{sub 0}{vert_bar} remain constant for {sup 222}Ra and {sup 226}Ra and have a very small value for {sup 224}Ra, suggesting that the charge and mass distributions are not affected appreciably by rotations. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 490209
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 15 Vol. 78; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ALIGNMENT
ANGULAR MOMENTUM
DEFORMATION
HIGH SPIN STATES
MASS DISTRIBUTION
MULTI-NUCLEON TRANSFER REACTIONS
OCTUPOLES
PARITY
RADIUM ISOTOPES
RADON ISOTOPES
ROTATIONAL STATES