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Prompt photon production at HERA |
| Reference |
N.N., talk to be presented at DIS 2002, summer 2002 |
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| Contact |
J.Gayler |
| Abstract |
Inclusive prompt photons in photoproduction at HERA are measured. Data are presented as a function of transverse energy E_T^gamma and pseudorapidity eta^gamma for E_T^gamma > 5 GeV and -1 < eta^gamma < 0.9 in the gamma-p center of mass energy range 70-270 GeV. The data were taken with the H1 detector in the years 1996-2000. After selection of prompt photon candidates, a sizable amount of background from pi^0 mesons remains and the signal is extracted by a likelihood technique using the shower shape variables as discriminators. The results are compared to the PYTHIA Monte-Carlo and a NLO-QCD calculation. |
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