Spin Structure of Binary Processes in the sup 3 P sub 0 Model of Colored Tube

摘要

The binary processes 0+1/2 ->0+1/2 ( pi /sup -/p -> pi /sup 0/n, pi /sup -/p -> eta n) are considered in the colored tube model. It is shown that the relations of residues of the amplitude M/sub 0/+i sigma-vector n-vector q/2q/sub 0/M/sub 1/ and their q/sup 2/-dependence at the secondary Regge pole exchange is determined by the wave function of a gg-bar pair which appears in the /sup 3/P/sub 0/ state at disruption of a colored tube. The account of the Thomas interaction gives a small contribution into matrix elements logarithmically decreasing with energy. The model, accounting for absorption, agrees semiquantitatively with experimental data. 18 refs.; 4 figs. (Atomindex citation 19:070783)