Shape coexistence in 187Au
- 1. Department of Physics, University of Tennessee, Knoxville, Tennessee 37996
- 2. Tandem Accelerator Laboratory, McMaster University, Hamilton, Canada L8S 4K1 (Canada)
Description
The level structure of odd-proton 187Au was studied using the 172Yb(19F,4n) reaction. Gamma-gamma coincidence, angular distributions and γ-γ-time measurements were used to establish the energies, spins, parities, and lifetimes for the states in the decay scheme of 187Au. Both prolate and oblate structures have been established. The prolate bands are built on the πh/sub 9/2/ α=+-(1/2) and the πi/sub 13/2/ (α=1/2) particle states. Anoblate, strongly coupled band built on a 90+-10 ns isomeric state is reported for the first time. A second oblate structure built on the h/sub 11/2/ proton-hole state was established to much higher spin than before. The backbend present in the πi/sub 13/2/ band has been interpreted as the alignment of a pair of h/sub 9/2/ protons
Additional details
Publishing Information
- Journal Title
- Physical Review, C
- Journal Volume
- 40
- Journal Issue
- 1
- Series
- Phys. Rev., C.
- Journal Page Range
- 132-144
- ISSN
- 0556-2813
- CODEN
- PRVCA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 20083104
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- ANGULAR DISTRIBUTION; COINCIDENCE SPECTROMETRY; COMPOUND-NUCLEUS REACTIONS; ENERGY LEVELS; EXPERIMENTAL DATA; FLUORINE 19 REACTIONS; GAMMA RADIATION; GOLD 187; LIFETIME; NEUTRONS; PARITY; PARTICLE-HOLE MODEL; SHELL MODELS; SPIN; YTTERBIUM 172 TARGET
- Descriptors DEC
- ANGULAR MOMENTUM; BARYONS; BETA DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; COINCIDENCE METHODS; COUNTING TECHNIQUES; DATA; DISTRIBUTION; ELECTROMAGNETIC RADIATION; ELECTRON CAPTURE RADIOISOTOPES; ELEMENTARY PARTICLES; FERMIONS; GOLD ISOTOPES; HADRONS; HEAVY ION REACTIONS; HEAVY NUCLEI; INFORMATION; IONIZING RADIATIONS; ISOTOPES; MATHEMATICAL MODELS; MINUTES LIVING RADIOISOTOPES; NUCLEAR MODELS; NUCLEAR REACTIONS; NUCLEI; NUCLEONS; NUMERICAL DATA; ODD-EVEN NUCLEI; PARTICLE PROPERTIES; RADIATIONS; RADIOISOTOPES; TARGETS