Speaker
Stefan Schmitt
(Ruprecht-Karls-Universitaet Heidelberg (DE))
Description
At HERA, deep inelastic scattering progresses have been studied in order to
probe the fundamental forces predicted by the standard model and the
structure of the proton. One of the most fundamental processes is the
elastic production of photons, e p -> e p gamma. For the case where the
momentum transfer at the proton vertex is small, but both the electron
and the photon have significant transverse momentum, the process is
referenced as elastic QED Compton scattering. This process has the
feature that it may be calculated at high precision in the framework
of perturbative QED, and experimental background from other processes,
like deeply-virtual Compton scattering, is small. In this analysis, the
rate of elastic QED Compton events together with the cross section
predicted from QED in used to measure the integrated luminosity of H1
datasets. The results are compared to default measurements of the
integrated luminosity using Bethe-Heitler events.
Author
Ringaile Placakyte
(Deutsches Elektronen-Synchrotron (DE))
