DOI 10.1007/s100529900022
Deep inelastic scattering
with a tagged photon:
QED corrections for the 
method
Fachbereich Physik, Siegen University, D-57068 Siegen, Germany
Received: 12 January 1999 / Published online: 22 March 1999
Abstract
After a brief review of the kinematics of deep inelastic scattering (DIS)
within the so-called method, we derive the necessary formulae for
the treatment of QED radiative corrections to DIS originating from hard
photon radiation. The results are applied to a calculation of the
corrections to DIS with a tagged photon with next-to-leading logarithmic
accuracy under HERA conditions. It turns out that the next-to-leading
logarithmic corrections are quite important for the method. We
also discuss the dependence of the corrections on the longitudinal structure
function of the proton, FL, in the region of low Q2 and moderate x.
Copyright Springer-Verlag
