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Negative Parity States in 39Cl Configured by Crossing Major Shell Orbits.
- Source :
-
Chinese Physics Letters . Jun2019, Vol. 36 Issue 6, p1-1. 1p. - Publication Year :
- 2019
-
Abstract
- Traditional “magic numbers” were once regarded as immutable throughout the nuclear chart. However, unexpected changes were found for unstable nuclei around N = 20. With both proton and neutron numbers around the magic number of 20, the neutron-rich 39Cl isotope provides a good test case for the study of the quantum-state evolution across the major shell. In the present work, the negative parity states in 39Cl are investigated through the β decay spectroscopy of 39S. Newly observed γ transitions together with a new state are assigned into the level scheme of 39Cl. The spin parity of 5/2− for the lowest negative parity state in 39Cl is reconfirmed using the combined γ transition information. These systematic observations of the negative parity states in 39Cl allow a comprehensive comparison with the theoretical descriptions. The lowest 5/2− state in 39Cl remains exotic in terms of comparisons with existing theoretical calculations and with the neighboring isotopes having similar single-particle configurations. Further experimental and theoretical investigations are suggested. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ATOMIC number
*ORBITS (Astronomy)
*PARITY (Physics)
*ISOTOPES
Subjects
Details
- Language :
- English
- ISSN :
- 0256307X
- Volume :
- 36
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Chinese Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 136757673
- Full Text :
- https://doi.org/10.1088/0256-307X/36/6/062101