Observation of isolated high-E-T photons in deep inelastic scattering

Journal article

First measurements of cross sections for isolated prompt photon production in deep inelastic ep scattering have been made using the ZEUS detector at the HERA electron-proton collider using an integrated luminosity of 121 pb -1. A signal for isolated photons in the transverse energy and rapidity ranges 535GeV2. Cross sections are presented for inclusive prompt photons and for those accompanied by a single jet in the range ETjet≥6GeV and -1. 5≤ηjet<1.8. Calculations at order α 3αs describe the data reasonably well. © 2004 Elsevier B.V. All rights reserved.

Authors: Chekanov, S; Derrick, M; Loizides, J; Magill, S; Miglioranzi, S

• Publication status: Published
• Journal: Physics Letters B
• Volume: 595
• Issue: 1-4
• Pages: 86-100
• Publication date: 2004-08-12
• DOI: 10.1016/j.physletb.2004.05.033
• ISSN: 0370-2693
• Language: English