Inelastic Scattering of 42-MeV Alpha Particles byMg25
- 1 February 1970
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review C
- Vol. 1 (2), 569-580
- https://doi.org/10.1103/PhysRevC.1.569
Abstract
Cross sections have been measured for elastic and inelastic scattering of 42-MeV particles by in the range . Six inelastic groups were identified at the following measured values: 1.59, 1.94, 2.55, 2.75 (doublet), 3.400 (doublet), and 4.05 MeV. The cross sections are analyzed in terms of the distorted-wave Born-approximation version of the extended optical model and the smoothed Fraunhofer inelastic diffraction model. A general discussion is given of the transition strengths of odd-mass nuclei within the context of the strong-coupling rotational model or modifications thereof, and application is made to the present results. The main conclusions are: Inelastic scattering within the ground-state band supports the rotational model in its simplest form. Comparison of the elastic cross sections from , , and indicates the presence of a quadrupole contribution to the elastic cross section from , consistent with the strong-coupling prediction. The single-nucleon contribution to transitions into the lowest band appears to be very small. The excitation corresponding to the known level at 4.057 MeV suggests that this level arises from coupling a vibration to the ground-state band. The second band may have the same origin, although other evidence indicates that there is at least a sizable admixture of a single-nucleon orbital to this band.
Keywords
This publication has 22 references indexed in Scilit:
- Inelastic Scattering of 42-MeV Alpha Particles byPhysical Review B, 1968
- Energy levels of Z = 11−21 nuclei (IV)Nuclear Physics A, 1967
- Properties of some 25Mg energy levelsPhysics Letters B, 1967
- Analyses of the Scattering of Nuclear Particles by Collective Nuclei in Terms of the Coupled-Channel CalculationReviews of Modern Physics, 1965
- Collective effects and elastic scattering from odd-mass nucleiNuclear Physics, 1963
- Analysis of the Inelastic Scattering of Alpha Particles. IPhysical Review B, 1962
- Inelastic Scattering of Deuterons from the Magnesium IsotopesPhysical Review B, 1961
- Kinematic Effects in Target Thickness CalculationsReview of Scientific Instruments, 1960
- Inelastic Diffraction ScatteringPhysical Review B, 1959
- Resolution of Accelerator Magnetic Analyzing SystemsReview of Scientific Instruments, 1959