Published February 8, 2007 | Version v1
Journal article Metadata-only

Deeply virtual Compton scattering on a photon and generalized parton distributions in the photon

Creators

  • 1. Departament d'Estructura i Constituents de la Materia, Facultat de Fisica, 08028 Barcelona (Spain)
  • 2. Centre de Physique Theorique, Ecole Polytechnique, CNRS, 91128 Palaiseau (France)
  • 3. Soltan Institute for Nuclear Studies, Warsaw (Poland)
  • 4. Universite de Liege, B4000 Liege (Belgium)

Description

We consider deeply virtual Compton scattering on a photon target, in the generalized Bjorken limit, at the Born order and in the leading logarithmic approximation. We interpret the result as a factorized amplitude of a hard process described by handbag diagrams and anomalous generalized parton distributions in the photon. This anomalous part, with its characteristic log(Q2) dependence, is present both in the DGLAP and in the ERBL regions. As a consequence, these generalized parton distributions of the photon obey DGLAP-ERBL evolution equations with an inhomogeneous term

Additional details

Identifiers

DOI
10.1016/j.physletb.2006.12.038;
arXiv
arXiv:hep-ph/0611176v2;
PII
S0370-2693(06)01590-5;

Publishing Information

Journal Title
Physics Letters. Section B
Journal Volume
645
Journal Issue
2-3
Journal Page Range
p. 153-160
ISSN
0370-2693
CODEN
PYLBAJ

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
39018473
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
APPROXIMATIONS; COMPTON EFFECT; EQUATIONS; MATHEMATICAL EVOLUTION; PHOTONS; QUARKS
Descriptors DEC
BASIC INTERACTIONS; BOSONS; CALCULATION METHODS; ELASTIC SCATTERING; ELECTROMAGNETIC INTERACTIONS; ELEMENTARY PARTICLES; EVOLUTION; FERMIONS; INTERACTIONS; MASSLESS PARTICLES; SCATTERING

Optional Information

Copyright
Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.