Lifetime Measurements from theReaction
- 20 November 1968
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 175 (4), 1446-1452
- https://doi.org/10.1103/physrev.175.1446
Abstract
Lifetime measurements with a Ge(Li) detector have been made for several excited states of by the Doppler-shift attenuation method utilizing the reaction. Agreement with results of () lifetime measurements is found for levels at 3.904, 5.280, and 6.285 MeV. New lifetime results are reported for levels at 5.615 MeV (>0.8 psec), 7.465 MeV ( psec), and 7.562 MeV ( psec. An upper limit of 1% is set for the branching of the 3.904-MeV () to the 3.354-MeV () levels. Comparison is made with Gerace and Green's predictions that the 5.280-, 3.904-, and 3.354-MeV levels form a rotational band. Calibration of the resonance spectrum with rays has resulted in precise establishment of level energies for , a better value for the reaction of 8.3295±0.0009 MeV, and the association of the lower member of the doublet near 5.615 MeV with the level in this region. New decay modes are established for the levels at 7.113, 7.562, and 7.811 MeV.
Keywords
This publication has 21 references indexed in Scilit:
- Lifetimes, Energies, and Branching Ratios ofSi28Excited StatesPhysical Review B, 1968
- Particle-Hole States inO16Physical Review Letters, 1966
- Notes on Doppler-shift lifetime measurementsNuclear Physics, 1966
- Collective and spherical states in O16Physics Letters, 1965
- A Hartree-Fock calculation of excited states of O16Physics Letters, 1965
- Collective admixtures in the odd-parity states of O16Physics Letters, 1965
- Shell model and deformed states in O18Physics Letters, 1965
- Ca40 (α, α'): A test of particle-hole calculationsPhysics Letters, 1965
- Gamma radiation from the alpha particle bombardment of C12Nuclear Physics, 1964
- Elastic Scattering of Alpha Particles byin the Bombarding Energy Range 10 to 19 MeVPhysical Review B, 1964