https://doi.org/10.1007/s100529900214
Theoretical physics
Photon fragmentation in large-
ep collisions at next-to-leading order QCD
Deutsches Elektronen-Synchrotron DESY, 22603 Hamburg, Germany
, DE
Institut für Theoretische Teilchenphysik, Universität Karlsruhe, 76128 Karlsruhe, Germany (e-mail: gehra@particle.physik.uni-karlsruhe.de)
, DE
II. Institut für Theoretische Physik, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany (e-mail: kramer@mail.desy.de)
, DE
Institut für Physik, Johannes-Gutenberg-Universität, Staudinger Weg 7, 55099 Mainz, Germany (e-mail: hspiesb@thep.physik.uni-mainz.de)
, DE
Received:
9
August
1999
Published online:
28
September
1999
We study the production of photons accompanied by jets in large- deep inelastic scattering. Numerical results for the cross section differential with respect to the fraction of momentum 
carried by a photon inside a jet at large , up to 
in perturbative QCD, are presented. The sensitivity to the fragmentation contribution allows one to study the quark-to-photon fragmentation function. Our results can be confronted with future experimental data from HERA.
© Springer-Verlag Berlin Heidelberg, 1999
