Twist-3 Effects in Polarized Photon Structure

Abstract

The polarized photon structure is described by two spin structure functions $g_1^{\gamma }$ and $g_2^{\gamma }$ which can be studied in the future polarized ep or e${}^{+}$e${}^{-}$ colliders. Here we investigate the QCD twist-3 effects in $g_2^{\gamma }$ to the leading order in QCD.

Comments: 4 pages, LaTeX2e, 2 eps figures, ws-ijmpa.cls file included, Talk given at the 3rd Circum-Pan-Pacific Symposium on High Energy Spin Physics, Beijing, October 8-13, 2001, to appear in the Proceedings