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Isolated Photons in Deep Inelastic Scattering

descriptionPublicationkeyboard_double_arrow_right Article , Preprint 07 Apr 2006Embargo end date: 01 Jan 2006 English Publisher:American Physical Society (APS)Journal:Physical Review Letters, volume 96 (issn: 0031-9007, eissn: 1079-7114,

Authors: A. Gehrmann-De Ridder; Thomas Gehrmann; E. Poulsen;

doi: 10.1103/physrevlett.96.132002 , 10.48550/arxiv.hep-ph/0601073

pmid: 16711980

arXiv: http://arxiv.org/abs/hep-ph/0601073

Isolated Photons in Deep Inelastic Scattering

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Abstract

Photon radiation at large transverse momenta at colliders is a detailed probe of hard interaction dynamics. The isolated photon production cross section in deep inelastic scattering was measured recently by the ZEUS experiment, and found to be considerably larger than theoretical predictions obtained with widely used event generators. To investigate this discrepancy, we perform a dedicated parton-level calculation of this observable, including contributions from fragmentation and large-angle radiation. Our results are in good agreement with all aspects of the experimental measurement.

4 pages, 3 figures

Related Organizations

ETH Zurich
Switzerland
University of Zurich
Switzerland
Institute for Theoretical Physics
Switzerland

Keywords

High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), FOS: Physical sciences

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	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Top 10%
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Top 10%

Green

bronze

Fields of Science

Fields of Science

Funded by

SNSF| Photon Fragmentation at High Energy Colliders