Published February 27, 1989
| Version v1
Journal article
Properties of 15-/2 states in 215Ra and 217Th; evaluation of the 15-/2 to 9+/2 E3 strength in N=127 isotones
Creators
- 1. Australian National Univ., Canberra. Dept. of Nuclear Physics
Description
The lifetime of the yrast 15-/2 state in 215Ra was measured using pulsed beams and γ-ray and electron techniques. Transition multipolarities were established from measured conversion coefficients. The B(E3) of the 15-/2 → 9+/2 transition is found to be considerably larger than previously reported. A candidate for the corresponding transition in 217Th was also observed. The E3 strength of the 15-/2 → 9+/2 transition in the N=127 isotones is evaluated in the light of these and other recent results. Interpretation in the framework of particle-octupole vibration coupling requires a systematic lowering of the core 3- vibration as proton pairs are added to 208Pb. (orig.)
Additional details
Publishing Information
- Journal Title
- Nuclear Physics, A
- Journal Volume
- 493
- Journal Issue
- 1
- Series
- Nucl. Phys., A.
- Journal Page Range
- 145-156
- ISSN
- 0375-9474
- CODEN
- NUPAB
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 20051147
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- BRANCHING RATIO; CARBON 12 REACTIONS; CARBON 13 REACTIONS; DE-EXCITATION; ELECTRON SPECTRA; ENERGY SPECTRA; EXPERIMENTAL DATA; E3-TRANSITIONS; GAMMA SPECTRA; HEAVY ION FUSION REACTIONS; HIGH SPIN STATES; INTERNAL CONVERSION; K CONVERSION; L CONVERSION; LEAD 204 TARGET; LEAD 206 TARGET; LEAD 208 TARGET; LIFETIME; M CONVERSION; MATRIX ELEMENTS; MEV RANGE 10-100; MULTIPOLARITY; NEUTRONS; NUCLEAR STRUCTURE; OXYGEN 16 REACTIONS; PARTICLE-CORE COUPLING MODEL; PHOTONS; RADIUM 215; ROTATIONAL STATES; STRENGTH FUNCTIONS; THORIUM 217; VIBRATIONAL STATES; YRAST STATES
- Descriptors DEC
- ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; BARYONS; BOSONS; CONVERSION; DATA; DECAY; ELEMENTARY PARTICLES; ENERGY LEVELS; ENERGY RANGE; ENERGY-LEVEL TRANSITIONS; EVEN-ODD NUCLEI; EXCITED STATES; FERMIONS; FUNCTIONS; HADRONS; HEAVY ION REACTIONS; HEAVY NUCLEI; INFORMATION; ISOTOPES; MASSLESS PARTICLES; MATHEMATICAL MODELS; MEV RANGE; MICROSEC LIVING RADIOISOTOPES; MILLISEC LIVING RADIOISOTOPES; MULTIPOLE TRANSITIONS; NUCLEAR DECAY; NUCLEAR MODELS; NUCLEAR REACTIONS; NUCLEI; NUCLEONS; NUCLEOSYNTHESIS; NUMERICAL DATA; RADIOISOTOPES; RADIUM ISOTOPES; SPECTRA; SYNTHESIS; TARGETS; THORIUM ISOTOPES