Coulomb excitation of /sup 183/W
Direct E2 and multiple Coulomb excitation of states up to J=9/2 in the K=1/2 and K=3/2 bands of /sup 183/W has been measured by means of ..gamma..-ray spectroscopy. Excitation was produced by 15-MeV /sup 4/He ions on a thick target of W with natural abundance. Excitation probabilities were also determined relative to the elastic scattering by the observation of the (..cap alpha..,..cap alpha..') reaction on /sup 183/W with 13-MeV /sup 4/He ions using a split-pole magnetic spectrometer equipped with a position-sensitive proportional detector. The B (E2) values for excitation of the 3/2/sup L/, 5/2/sup L/, 3/2/sup H/, and 5/2/sup H/ states (H and L refer to the high and low energy states of the same total angular momentum J) are obtained and information is given on the reduced transition probabilities for the different decay modes of these states. In particular, the prediction of strong cancellation in the E2 transition probabilities for the 3/2/sup H/ ..-->.. 1/2/sup L/, 3/2/sup H/ ..-->.. 5/2/sup L/, and 5/2/sup H/ ..-->.. 5/2/sup L/ transitions from Coriolis interaction calculations has been verified by the experimental results. The experimental results are compared with several calculations of the Coriolis coupling between the rotational bands. Several weakly excited states between 0.9 and 1.5 MeV were observed and the B (E2) for excitation of these states are < or = B (E2)/sub s.p./.
- Research Organization:
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830
- OSTI ID:
- 5841911
- Journal Information:
- Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 20:6; ISSN PRVCA
- Country of Publication:
- United States
- Language:
- English
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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA REACTIONS
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
CHARGED-PARTICLE REACTIONS
CORIOLIS FORCE
COULOMB EXCITATION
CROSS SECTIONS
DISTRIBUTION
E2-TRANSITIONS
ENERGY LEVELS
ENERGY RANGE
ENERGY SPECTRA
ENERGY-LEVEL TRANSITIONS
EVEN-ODD NUCLEI
EXCITATION
GAMMA SPECTROSCOPY
HEAVY NUCLEI
INELASTIC SCATTERING
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
M1-TRANSITIONS
MEV RANGE
MEV RANGE 10-100
MULTIPOLE TRANSITIONS
NUCLEAR REACTIONS
NUCLEI
PARITY
PARTICLE PROPERTIES
PROBABILITY
RADIOISOTOPES
SCATTERING
SECONDS LIVING RADIOISOTOPES
SPECTRA
SPECTROSCOPY
SPIN
STABLE ISOTOPES
TARGETS
TUNGSTEN 183
TUNGSTEN 183 TARGET
TUNGSTEN ISOTOPES