Published November 10, 2014
| Version v1
Journal article
Identification of a millisecond isomeric state in 129Cd81 via the detection of internal conversion and Compton electrons
Creators
- 1. RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198 (Japan)
- 2. Departamento de Física Teórica, Universidad Autónoma de Madrid, E-28049 Madrid (Spain)
- 3. Instituto de Estructura de la Materia, CSIC, E-28006 Madrid (Spain)
- 4. GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt (Germany)
- 5. LPSC, Université Joseph Fourier Grenoble 1, CNRS/IN2P3, Institut National Polytechnique de Grenoble, F-38026 Grenoble cedex (France)
- 6. Department of Physics, Tohoku University, Aoba, Sendai, Miyagi 980-8578 (Japan)
- 7. School of Computing, Engineering and Mathematics, University of Brighton, Brighton BN2 4JG (United Kingdom)
- 8. Physik Department E12, Technische Universität München, D-85748 Garching (Germany)
Description
The decay of an isomeric state in the neutron-rich nucleus 129Cd has been observed via the detection of internal conversion and Compton electrons providing first experimental information on excited states in this nucleus. The isomer was populated in the projectile fission of a 238U beam at the Radioactive Isotope Beam Factory at RIKEN. From the measured yields of γ-rays and internal conversion electrons, a multipolarity of E3 was tentatively assigned to the isomeric transition. A half-life of T1/2=3.6(2) ms was determined for the new state which was assigned a spin of (21/2+), based on a comparison to shell model calculations performed using state-of-the-art realistic effective interactions
Availability note (English)
Available from http://dx.doi.org/10.1016/j.physletb.2014.09.047Additional details
Identifiers
- DOI
- 10.1016/j.physletb.2014.09.047;
- PII
- S0370-2693(14)00705-9;
Publishing Information
- Journal Title
- Physics Letters. Section B
- Journal Volume
- 738
- Journal Page Range
- p. 223-227
- ISSN
- 0370-2693
- CODEN
- PYLBAJ
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 47003909
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- CADMIUM 129; COMPARATIVE EVALUATIONS; COMPTON EFFECT; DETECTION; ELECTRONS; EXCITED STATES; FISSION; HALF-LIFE; INTERACTIONS; INTERNAL CONVERSION; ISOMERIC TRANSITIONS; ISOMERS; MULTIPOLARITY; NEUTRON-RICH ISOTOPES; SHELL MODELS; SPIN; URANIUM 238
- Descriptors DEC
- ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; ANGULAR MOMENTUM; BASIC INTERACTIONS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CADMIUM ISOTOPES; CONVERSION; DECAY; ELASTIC SCATTERING; ELECTROMAGNETIC INTERACTIONS; ELEMENTARY PARTICLES; ENERGY LEVELS; ENERGY-LEVEL TRANSITIONS; EVALUATION; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; FERMIONS; HEAVY NUCLEI; INTERACTIONS; INTERMEDIATE MASS NUCLEI; ISOTOPES; LEPTONS; MATHEMATICAL MODELS; MILLISECONDS LIVING RADIOISOTOPES; NUCLEAR DECAY; NUCLEAR MODELS; NUCLEAR REACTIONS; NUCLEI; PARTICLE PROPERTIES; RADIOISOTOPES; SCATTERING; SPONTANEOUS FISSION RADIOISOTOPES; URANIUM ISOTOPES; YEARS LIVING RADIOISOTOPES
Optional Information
- Copyright
- Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.