Polarization phenomena in hyperonnucleon scattering
Abstract
We investigate polarization observables in hyperonnucleon scattering by decomposing scattering amplitudes into spinspace tensors, where each component describes scattering by corresponding spindependent interactions, so that contributions of the interactions in the observables are individually identified. In this way, for elastic scattering we find some linear combinations of the observables sensitive to particular spindependent interactions such as symmetric spinorbit ( LS ) interactions and antisymmetric LS ones. These will be useful to criticize theoretical predictions of the interactions when the relevant observables are measured. We treat vector analyzing powers, depolarizations, and coefficients of polarization transfers and spin correlations, a part of which is numerically examined in ∑^{+} p scattering as an example. Total cross sections are studied for polarized beams and targets as well as for unpolarized ones to investigate spin dependence of imaginary parts of forward scattering amplitudes.
 Publication:

Physical Review C
 Pub Date:
 March 2004
 DOI:
 10.1103/PhysRevC.69.034001
 arXiv:
 arXiv:nuclth/0312036
 Bibcode:
 2004PhRvC..69c4001I
 Keywords:

 24.70.+s;
 25.80.Pw;
 13.75.Ev;
 Polarization phenomena in reactions;
 Hyperoninduced reactions;
 Hyperonnucleon interactions;
 Nuclear Theory
 EPrint:
 15 pages, 8 figures