Eur Phys J C (2004) 33: s439-s441
https://doi.org/10.1140/epjcd/s2003-03-421-9

PS04 Hard QCD

Prompt photon production with associated jets at HERA

Dept of Physics and Astronomy, University of Glasgow, Glasgow, G12 8QQ, Scotland

Received: 19 August 2003
Accepted: 22 August 2003
Published online: 19 September 2003

Abstract

We present the first observation of prompt photon production in deep inelastic scattering, by ZEUS, and make comparisons to NLO calculations and to Monte Carlos. New results are also presented on the photoproduction of prompt photons, by H1, with comparisons to calculations and to earlier data.