Polarized Photon Structure: $g_1^{\gamma }$ and $g_2^{\gamma }$

Abstract

We investigate the polarized photon structure functions $g_1^{\gamma }$ and $g_2^{\gamma }$ which can be studied in the future polarized version of ep or e${}^{+}$e${}^{-}$ colliders. The NLO QCD calculations of $g_1^{\gamma }$ and the possible twist-3 effects in $g_2^{\gamma }$ are discussed.

Comments: 8 pages, LaTeX2e, 1 eps figure, cjpsuplf.cls file included, Talk given at the Advanced Study Institute on Symmetries and Spin, Praha-SPIN-2001, Prague, July 15-28, 2001, to appear in the Proceedings