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.
POLARIZATION OF PROTONS PRODUCED IN THE STRIPPING OF DEUTERONS BY B$sup 10$, Si$sup 28$, AND Ca$sup 4$$sup 0$
The angular dependences of the polarization of protons from the B./sup 10/(d,p)B/sup 11/, Si/sup 28/(d,p)Si/sup 29/, and Ca/sup 40/(d, p)Ca/sup 41/ reactions were measured using 10-Mev deuterons. The polarizations in all of these reactions were found to exceed the limits set by the central potential distorted wave Born approximation. The polarizations of protons resulting from the B/sup 10/(d,p)B/sup 11*/ reactions were also measured at a few angles. (auth)