Precision calculation of processes used for luminosity measurement at the ZEUS experiment
High Energy Physics - Phenomenology
2011-10-26 v2
Abstract
The process pe -> pe+gamma with the photon emitted along the electron beam axis is used for luminosity measurement at HERA. In this paper the process is calculated including one-loop QED radiative corrections. In the ZEUS experiment, both the electron and the photon can be detected. Therefore both photon and electron spectra with and without the gamma-e coincidence are analyzed. We also calculate the process pe -> pel+l- which contributes to the background in the electron tagger.
Keywords
Cite
@article{arxiv.1009.2451,
title = {Precision calculation of processes used for luminosity measurement at the ZEUS experiment},
author = {T. Haas and V. Makarenko},
journal= {arXiv preprint arXiv:1009.2451},
year = {2011}
}
Comments
12 pages, 9 figures