Precision measurements of proton emission from the ground states of 156Ta and 160Re
Creators
- Darby, I. G.1, 2, 3, 4, 5, 6
- Page, R. D.1, 2, 3, 4, 5, 6
- Joss, D. T.1, 2, 3, 4, 5, 6
- Bianco, L.1, 2, 3, 4, 5, 6
- Grahn, T.1, 2, 3, 4, 5, 6
- Judson, D. S.1, 2, 3, 4, 5, 6
- Simpson, J.1, 2, 3, 4, 5, 6
- Eeckhaudt, S.1, 2, 3, 4, 5, 6
- Greenlees, P. T.1, 2, 3, 4, 5, 6
- Jones, P. M.1, 2, 3, 4, 5, 6
- Julin, R.1, 2, 3, 4, 5, 6
- Juutinen, S.1, 2, 3, 4, 5, 6
- Ketelhut, S.1, 2, 3, 4, 5, 6
- Leino, M.1, 2, 3, 4, 5, 6
- Leppaenen, A.-P.1, 2, 3, 4, 5, 6
- Nyman, M.1, 2, 3, 4, 5, 6
- Rahkila, P.1, 2, 3, 4, 5, 6
- Saren, J.1, 2, 3, 4, 5, 6
- Scholey, C.1, 2, 3, 4, 5, 6
- Steer, A. N.1, 2, 3, 4, 5, 6
- and others
- 1. Royal Institute of Technology, Alba Nova Center, S-106 91 Stockholm (Sweden)
- 2. IPHC, CNRS-IN2P3, ULP Strasbourg, 23 rue de Loess, F-67037 Strasbourg cedex 2 (France)
- 3. Nigde Universitesi, Fen-Edebiyat Falkueltesi, Fizik Boeluemue, Nigde (Turkey)
- 4. Department of Physics, University of Jyvaeskylae, P.O. Box 35, FIN-40014 Jyvaeskylae (Finland)
- 5. STFC, Daresbury Laboratory, Daresbury, Warrington WA4 4AD (United Kingdom)
- 6. Department of Physics, University of Liverpool, Liverpool L69 7ZE (United Kingdom)
Description
The decays of the πd3/2 ground states of 156Ta and 160Re have been studied in detail using the GREAT spectrometer. More than 7000 160Re nuclei were produced in reactions of 290- and 300-MeV 58Ni ions with an isotopically enriched 106Cd target and separated in flight using the RITU separator. The proton and α decays of the πd3/2 level were confirmed and the half-life and branching ratios of this state were determined with improved precision to be t1/2=611±7 μs and bp=89±1% and bα=11±1%, respectively. The α-decay branch populated the ground state of 156Ta, allowing improved values for the proton-decay energy and half-life to be obtained (Ep=1011±5 keV; t1/2=106±4 ms). The β decay of this level was identified for the first time and a branching ratio of bβ=29±3% was deduced. The spectroscopic factors deduced from these measurements are compared with predictions.
Additional details
Identifiers
Publishing Information
- Journal Title
- Physical Review. C, Nuclear Physics
- Journal Volume
- 83
- Journal Issue
- 6
- Journal Page Range
- p. 064320-064320.4
- ISSN
- 0556-2813
- CODEN
- PRVCAN
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 42094593
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- ACCURACY; ALPHA DECAY; BETA DECAY; BRANCHING RATIO; CADMIUM 106 TARGET; EMISSION; FORECASTING; GROUND STATES; HALF-LIFE; IONS; KEV RANGE; MEV RANGE; NICKEL 58; PROTONS; RHENIUM 160; SPECTROMETERS; SPECTROSCOPIC FACTORS; TANTALUM 156
- Descriptors DEC
- ALPHA DECAY RADIOISOTOPES; BARYONS; BETA DECAY RADIOISOTOPES; CHARGED PARTICLES; DECAY; DIMENSIONLESS NUMBERS; ELECTRON CAPTURE RADIOISOTOPES; ELEMENTARY PARTICLES; ENERGY LEVELS; ENERGY RANGE; EVEN-EVEN NUCLEI; FERMIONS; HADRONS; INTERMEDIATE MASS NUCLEI; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MEASURING INSTRUMENTS; MICROSECONDS LIVING RADIOISOTOPES; MILLISECONDS LIVING RADIOISOTOPES; NICKEL ISOTOPES; NUCLEAR DECAY; NUCLEI; NUCLEONS; ODD-ODD NUCLEI; PROTON DECAY RADIOISOTOPES; RADIOISOTOPES; RHENIUM ISOTOPES; STABLE ISOTOPES; TANTALUM ISOTOPES; TARGETS
Optional Information
- Notes
- (c) 2011 American Institute of Physics