Universal QED Corrections to Polarized Electron Scattering in Higher Orders

We derive QED radiators for the universal corrections to polarized electron scattering. To 5th order in the coupling constant the flavor non-singlet and singlet contributions are calculated. We derive the non-singlet and singlet exponentiation of the leading terms ∝ (α ln(x))k to all orders. Contribution to DIS 2002, April 2002, Cracow. Universal QED Corrections to Polarized Electron Scattering in Higher Orders ∗ Johannes Blümlein and Hiroyuki Kawamura Deutsches Elektronen–Synchrotron, DESY, Platanenallee 6, D–15738 Zeuthen, Germany We derive QED radiators for the universal corrections to polarized electron scattering. To 5th order in the coupling constant the flavor non-singlet and singlet contributions are calculated. We derive the non-singlet and singlet exponentiation of the leading terms ∝ (α ln(x))k to all orders.