Spin Polarization of Hyperons in the Hadron-Hadron Inclusive Collisions - Mechanisms and Dynamics -

Abstract

We discuss interplay of the scalar and vector diquarks which decide the characteristics of the spin polarization as functions of $p_T$ and $x_F$ in the wide kinematical range. We demonstrate a significant effect of quark masses on the pair-creation probabilities from vacuum in $pp \to Σ^- X$ and $γp \to ΛX$ collisions, and also a remarkable correction induced by the diquark form factor in $ Σ^- p \to ΛX $ collision.