Published February 2002
| Version v1
Journal article
First observation of excited states in 139I
Creators
- 1. Institut de Recherches Subatomiques UMR7500, CNRS-IN2P3 et Universite Louis Pasteur, F-67037 Strasbourg (France)
- 2. Argonne National Laboratory, Argonne, Illinois 60439 (United States)
- 3. Schuster Laboratory, Department of Physics and Astronomy, University of Manchester, Manchester M13 9PL (United Kingdom)
- 4. Institute of Experimental Physics, Warsaw University, ul. Hoza 69, 00-681 Warsaw (Poland)
Description
This work reports on the first observation of excited levels in the 139I nucleus. Levels in 139I, populated in spontaneous fission of 248Cm, were studied by means of prompt γ-ray spectroscopy, using the EUROGAM2 array. The level scheme of 139I obtained in this work shows patterns characteristic of a spherical vibrator, which result from a weak interaction of the 138Te core with the odd proton. No signs of octupole correlations were observed in 139I. The new data allow, for the first time systematic predictions to be made of energies and spins of states in the 137Sb nucleus, helping the future studies of the r-process nuclei at the Z=50 line
Additional details
Identifiers
Publishing Information
- Journal Title
- Physical Review. C, Nuclear Physics
- Journal Volume
- 65
- Journal Issue
- 2
- Journal Page Range
- p. 024307-024307.4
- ISSN
- 0556-2813
- CODEN
- PRVCAN
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 35010831
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- CURIUM 248; EXCITED STATES; GAMMA SPECTROSCOPY; IODINE 139; PROMPT GAMMA RADIATION; R PROCESS; SPONTANEOUS FISSION
- Descriptors DEC
- ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CURIUM ISOTOPES; DECAY; ELECTROMAGNETIC RADIATION; ENERGY LEVELS; EVEN-EVEN NUCLEI; EVOLUTION; FISSION; GAMMA RADIATION; HEAVY NUCLEI; INTERMEDIATE MASS NUCLEI; IODINE ISOTOPES; IONIZING RADIATIONS; ISOTOPES; NUCLEAR DECAY; NUCLEAR REACTIONS; NUCLEI; ODD-EVEN NUCLEI; RADIATIONS; RADIOISOTOPES; SECONDS LIVING RADIOISOTOPES; SPECTROSCOPY; SPONTANEOUS FISSION RADIOISOTOPES; STAR EVOLUTION; YEARS LIVING RADIOISOTOPES
Optional Information
- Notes
- (c) 2002 The American Physical Society