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High Energy Physics - Phenomenology

arXiv:1305.6406 (hep-ph)
[Submitted on 28 May 2013 (v1), last revised 23 Oct 2013 (this version, v2)]

Title:Treatment of the infrared contribution: NLO QED evolution as a pedagogic example

Authors:E.G. de Oliveira, A.D. Martin, M.G. Ryskin
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Abstract:We show that the conventional prescription used for DGLAP parton evolution at NLO has an inconsistent treatment of the contribution from the infrared (IR) region. We illustrate the problem by studying the simple example of QED evolution, treating the electron and photon as partons. The deficiency is not present in a physical approach which removes the IR divergency and allows calculation in the normal 4-dimensional space.
Comments: 15 pages, 2 figures, erratum at the end of the article
Subjects: High Energy Physics - Phenomenology (hep-ph)
Report number: IPPP/13/32, DCPT/13/64
Cite as: arXiv:1305.6406 [hep-ph]
  (or arXiv:1305.6406v2 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.1305.6406
Journal reference: Eur. Phys. J. C (2013) 73:2534
Related DOI: https://doi.org/10.1140/epjc/s10052-013-2534-3

Submission history

From: Alan D. Martin [view email]
[v1] Tue, 28 May 2013 08:29:06 UTC (63 KB)
[v2] Wed, 23 Oct 2013 09:57:36 UTC (64 KB)
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