Published January 5, 2009
| Version v1
Journal article
Evolution of chirality from γ soft 108Ru to triaxial 110,112Ru
Creators
- 1. Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (United States)
- 2. Physics Department, Vanderbilt University, Nashville, TN 37235 (United States)
- 3. Department of Physics, Tsinghua University, Beijing 100084 (China)
- 4. Department of Physics, University of Notre Dame, Notre Dame, IN 46556 (United States)
- 5. Institut fuer Strahlenphysik, FZD-Rossendorf, Postfach 510119, D-01314 Dresden (Germany)
- 6. Idaho Accelerator Center, Idaho State University, Pocatello, ID 83209-8263 (United States)
- 7. Department of Physics and Astronomy, University of Tennessee, Knoxville, TN 37996 (United States)
- 8. PKU Leuven, Instituut voor Kern-en Stralingsfysica, Celestijnenlaan 200 D, B-3001 Leuven (Belgium)
- 9. University of Cologne, Institute of Kernphysics, Cologne D-50937 (Germany)
- 10. Joint Institute for Nuclear Research, Dubna 141980 (Russian Federation)
- 11. Lawrence Livermore National Laboratory, Livermore, CA 94550 (United States)
- 12. Universidade Federal do Rio de Janeiro, CP 68528, RG (Brazil)
Description
Rotational bands in 108,110,112Ru have been investigated by means of γ-γ-γ and γ-γ(θ) coincidences of prompt γ rays emitted in the spontaneous fission of 252Cf. The positive parity bands are described by different versions of IBA, where 108Ru is best described as a γ-soft nucleus whereas 110,112Ru are more like rigid triaxial rotors. New ΔI=1 negative parity doublet bands are found. In case of 110,112Ru, these are interpreted as soft chiral vibrations. Many of the experimental findings can be explained by microscopic calculations that combine the TAC mean-field with random phase approximation but a simple geometrical explanation is not apparent
Availability note (English)
Available from http://dx.doi.org/10.1016/j.physletb.2008.10.067Additional details
Identifiers
- DOI
- 10.1016/j.physletb.2008.10.067;
- PII
- S0370-2693(08)01364-6;
Publishing Information
- Journal Title
- Physics Letters. Section B
- Journal Volume
- 670
- Journal Issue
- 4-5
- Journal Page Range
- p. 307-312
- ISSN
- 0370-2693
- CODEN
- PYLBAJ
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 40050395
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- CALIFORNIUM 252; CHIRALITY; GAMMA RADIATION; MEAN-FIELD THEORY; PARITY; RANDOM PHASE APPROXIMATION; ROTATIONAL STATES; RUTHENIUM 108; RUTHENIUM 110; RUTHENIUM 112; SPONTANEOUS FISSION
- Descriptors DEC
- ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; APPROXIMATIONS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CALCULATION METHODS; CALIFORNIUM ISOTOPES; DECAY; ELECTROMAGNETIC RADIATION; ENERGY LEVELS; EVEN-EVEN NUCLEI; EXCITED STATES; FISSION; HEAVY NUCLEI; INTERMEDIATE MASS NUCLEI; IONIZING RADIATIONS; ISOTOPES; MINUTES LIVING RADIOISOTOPES; NUCLEAR DECAY; NUCLEAR REACTIONS; NUCLEI; PARTICLE PROPERTIES; RADIATIONS; RADIOISOTOPES; RUTHENIUM ISOTOPES; SECONDS LIVING RADIOISOTOPES; SPONTANEOUS FISSION RADIOISOTOPES; YEARS LIVING RADIOISOTOPES
Optional Information
- Copyright
- Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.