Asymmetries in elastic scattering of 100-MeV pi+ from a polarized He-3 target
1991
4 pages
Published in:
- Phys.Rev.Lett. 67 (1991) 3356-3359
Experiments:
Citations per year
Abstract: (APS)
We report the observation of a large asymmetry in the elastic scattering of 100 MeV π+ from a polarized He3 target. Measurements have been made at laboratory angles of 60°, 80°, and 100°, with the largest value Ay=0.89±0.12 occurring at 80°, near a cross-section minimum. This asymmetry is the largest observed to date in pion scattering from a spin-1/2 nucleus. The Ay data are qualitatively reproduced by a schematic model; however, agreement with the data is significantly improved when realistic three-body Faddeev wave functions and a full nonlocal distorted-wave impulse approximation reaction model are used.- pi+ nucleus: elastic scattering
- elastic scattering: pi+ nucleus
- pi+ nucleus: nuclear reaction
- nucleus: elastic scattering
- elastic scattering: nucleus
- helium: nuclide
- polarized target
- analyzing power
- polarization: asymmetry
- asymmetry: polarization
References(15)
Figures(0)