Mixed symmetry in the vibrational nucleus /sup 142/Ce
Creators
- 1. Department of Nuclear Physics, Research School of Physical Sciences, Australian National University, ACT, Canberra 2601, Australia
Description
Low-lying levels of the nucleus /sup 142/Ce have been studied by Coulomb excitation with /sup 4/He, /sup 12/C, and /sup 16/O projectiles to determine various B(E/lambda/ values and the static quadrupole moment Q(2/sub 1//sup +/). Excellent agreement is found between the observed properties and predictions made using the U(5) limit of the proton-neutron interacting boson model. The results strongly support the contention that the 2/sub 3//sup +/, 2.004-MeV level has mixed proton-neutron symmetry. Combining the present measurement for B(E2; 0/sub 1//sup +//yields/2/sub 3//sup +/) of 0.070 +- 0.011 e/sup 2/b/sup 2/ with known branching and mixing ratios gives a substantial M1 strength of 0.26 +- 0.05/mu//sub N//sup 2/ for the 2/sub 3//sup +//yields/2/sub 1//sup +/ transition
Additional details
Publishing Information
- Journal Title
- Physical Review, C
- Journal Volume
- 38
- Journal Issue
- 6
- Series
- Phys. Rev., C.
- Journal Page Range
- 2982-2984
- ISSN
- 0556-2813
- CODEN
- PRVCA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 20021349
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- ALPHA REACTIONS; BRANCHING RATIO; CARBON 12 REACTIONS; CERIUM 142; COULOMB EXCITATION; ENERGY LEVELS; EXPERIMENTAL DATA; E2-TRANSITIONS; INTERACTING BOSON MODEL; MEV RANGE 10-100; MIXING RATIO; M1-TRANSITIONS; OXYGEN 16 REACTIONS; QUADRUPOLE MOMENTS; U-5 GROUPS
- Descriptors DEC
- CERIUM ISOTOPES; DATA; ENERGY RANGE; ENERGY-LEVEL TRANSITIONS; EVEN-EVEN NUCLEI; EXCITATION; HEAVY ION REACTIONS; INFORMATION; INTERMEDIATE MASS NUCLEI; ISOTOPES; LIE GROUPS; MATHEMATICAL MODELS; MEV RANGE; MULTIPOLE TRANSITIONS; NUCLEAR MODELS; NUCLEAR REACTIONS; NUCLEI; NUMERICAL DATA; RARE EARTH NUCLEI; SHELL MODELS; STABLE ISOTOPES; SYMMETRY GROUPS; U GROUPS