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

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

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 rang...

Full description

Bibliographic Details
Main Authors: Chekanov, S, Derrick, M, Loizides, J, Magill, S, Miglioranzi, S, Musgrave, B, Repond, J, Yoshida, R, Mattingly, M, Pavel, N, Antonioli, P, Bari, G, Basile, A, Bellagamba, L, Boscherini, D, Bruni, A, Bruni, G, Romeo, G, Cifarelli, L, Cindolo, F, Contin, A, Corradi, A, De Pasquale, S, Giusti, P, Iacobucci, G
Format: Journal article
Language:English
Published: 2004
Description
Summary: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 5<etγ<10gev -0.7<ηγ<0.9="" and="" exchanged="" for="" observed="" of="" photon="" q2="" the="" virtualities="" was="">35GeV2. 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&lt;1.8. Calculations at order α 3αs describe the data reasonably well. © 2004 Elsevier B.V. All rights reserved.</etγ<10gev>

Similar Items