Prompt Photons in Photoproduction at HERA - High Energy Physics - ExperimentReportar como inadecuado

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Abstract: The production of prompt photons is measured in the photoproduction regime ofelectron-proton scattering at HERA. The analysis is based on a data samplecorresponding to a total integrated luminosity of 340 pb^-1 collected by the H1experiment. Cross sections are measured for photons with transverse momentumand pseudorapidity in the range 6 < Et < 15 GeV and -1.0 < eta < 2.4,respectively. Cross sections for events with an additional jet are measured asa function of the transverse energy and pseudorapidity of the jet, and as afunction of the fractional momenta x gamma and x p carried by the partonsentering the hard scattering process. The correlation between the photon andthe jet is also studied. The results are compared with QCD predictions based onthe collinear and on the k T factorisation approaches.

Autor: The H1 Collaboration


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