Journal article
Observation of isolated high-ET photons in deep inelastic scattering
Physics letters. B, Vol.595(1-4), pp.86-100
08/12/2004
DOI: 10.1016/j.physletb.2004.05.033
Abstract
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 and −0.7<ηγ<0.9 was observed for virtualities of the exchanged photon of Q2>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<1.8. Calculations at order α3αs describe the data reasonably well.
Details
- Title: Subtitle
- Observation of isolated high-ET photons in deep inelastic scattering
- Creators
- ZEUS CollaborationJ. Repond (Contributor)
- Resource Type
- Journal article
- Publication Details
- Physics letters. B, Vol.595(1-4), pp.86-100
- Publisher
- Elsevier B.V
- DOI
- 10.1016/j.physletb.2004.05.033
- ISSN
- 0370-2693
- eISSN
- 1873-2445
- Language
- English
- Date published
- 08/12/2004
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984627192902771