Testing the mechanisms proposed in different models for single-spin asymmetries

Abstract

It is shown that the origin of the striking left-right asymmetries observed in single-spin inclusive hadron production processes in high energy hadron-hadron collisions can be traced by performing suitable experiments. Several new experiments are proposed. The possible outcomes are summarized together with those of other relevant experiments which have already been suggested. It is pointed out that the results of such a set of experiments will not only be able to differentiate between existing theoretical models, but also be helpful in locating the source(s) of the observed asymmetries.

Talk presented by Liang Zuo-tang at the 12th International Symposium on High Energy Spin Physics, SPIN96, Amsterdam, September 10-14,1996