Rotational bands in 181Ta
Creators
- 1. Niels Bohr Inst., Roskilde (Denmark)
- 2. Department of Physics and Tandem Accelerator Center, University of Tsukuba, Ibaraki (Japan)
- 3. The Japan Atomic Energy Research Institute, Tokai, Ibaraki (Japan)
- 4. Henryk Niewodniczanski Inst. of Nuclear Physics, Cracow (Poland)
- 5. Department of Physics, Kyushu University, Fukuoka (Japan)
- 6. Oliver Lodge Laboratory, University of Liverpool, Liverpool (United Kingdom)
Description
High-spin states in 181Ta have been studied via the 176Yb(11B,α2n) reaction at 52 MeV using the PEX array and at 57 MeV using the NORDBALL array, with α-particle detection. The previously known, Kπ=7/2+ ground state band and Kπ=9/2- band have been extended to spins 29/2+ and 31/2-, respectively. Two new one-quasiparticle bands, the Kπ=5/2+ band built on the known 5/2+ isomer and a Kπ=(1/2-) band have been observed. Two other rotational bands with three-quasiparticle structure, Kπ=15/2- and (19/2+) with π7/2[404]ν21/2[510]9/2[624] and π9/2[514]ν21/2[510]9/2[624] configurations, respectively, have been newly observed. The half-life of the Kπ=(19/2+) bandhead which decays to the head of the 15/2- band has been measured to be 140(36) ns. However, transitions from the (19/2+) state to the 15/2- band have not been observed. (orig.)
Additional details
Publishing Information
- Journal Title
- European Physical Journal. A
- Journal Volume
- 3
- Journal Issue
- 3
- Journal Page Range
- p. 197-199
- ISSN
- 1434-6001
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 30001140
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- BORON 11 REACTIONS; BRANCHING RATIO; DE-EXCITATION; ENERGY SPECTRA; EXPERIMENTAL DATA; GAMMA CASCADES; GAMMA SPECTRA; HALF-LIFE; HEAVY ION FUSION REACTIONS; HIGH SPIN STATES; M1-TRANSITIONS; M2-TRANSITIONS; MEV RANGE 10-100; PARITY; ROTATIONAL STATES; SPIN; STRENGTH FUNCTIONS; TANTALUM 181; YTTERBIUM 176 TARGET
- Descriptors DEC
- ANGULAR MOMENTUM; DATA; ENERGY LEVELS; ENERGY RANGE; ENERGY-LEVEL TRANSITIONS; EXCITED STATES; FUNCTIONS; HEAVY ION REACTIONS; HEAVY NUCLEI; INFORMATION; ISOTOPES; MEV RANGE; MULTIPOLE TRANSITIONS; NUCLEAR CASCADES; NUCLEAR REACTIONS; NUCLEI; NUCLEOSYNTHESIS; NUMERICAL DATA; ODD-EVEN NUCLEI; PARTICLE PROPERTIES; SPECTRA; STABLE ISOTOPES; SYNTHESIS; TANTALUM ISOTOPES; TARGETS
Optional Information
- Notes
- With 3 figs., 10 refs.