Summary of studies of the η meson production with polarized proton beam at COSY‐11
We report on the COSY‐11 measurements of the analysing power for the pp→ppη reaction and interpret the results in the framework of the meson exchange models.
POLARIZATION PHENOMENA IN NUCLEAR REACTIONS.
The recent appearance of high-intensity polarized beams with a small energy spread has made feasible a number of experiments which could not have been considered just a few years ago. In many reactions, polarization parameters can often be measured almost as easily as cross sections. The volume of experimental data can thus be expected to increase rapidly; the results should be precise and reliable. The problem of explaining the measurements and drawing from them all the information about nuclear structure and nuclear reaction mechanisms that they contain is likely to severely challenge standard reaction theories.
A diffraction model treatment of polarization in direct nuclear reactions
Abstract A simple diffraction model describing the polarization of protons in a (d, p) l n = 0 reaction, where spin-orbit distortion is present in the outgoing proton channel, is presented. The model is also used to describe the polarization in the inelastic scattering of spin 1 2 particles with zero orbital angular momentum transfer.