Generalised parton distributions at small x

We justify the practical use of the Shuvaev integral transform approach to calculate the skewed distributions, needed to describe diffractive processes, directly from the conventional diagonal global parton distributions. We address doubts which have been raised about this procedure. We emphasise th...

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Published inThe European physical journal. C, Particles and fields Vol. 63; no. 1; pp. 57 - 67
Main Authors Martin, A. D., Nockles, C., Ryskin, M. G., Shuvaev, A. G., Teubner, T.
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer-Verlag 01.09.2009
Springer Nature B.V
Subjects
Astronomy
Astrophysics and Cosmology
Construction
Diffraction
Elementary Particles
Hadrons
Heavy Ions
Integral transforms
Integrals
Mathematical analysis
Measurement Science and Instrumentation
Nuclear Energy
Nuclear Physics
Packages
Partons
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Regular Article - Theoretical Physics
Skewed distributions
String Theory
Transforms
Skewed Distribution
Lead Order
Generalise Parton Distribution
Diffractive Process
Parton Distribution
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Summary:We justify the practical use of the Shuvaev integral transform approach to calculate the skewed distributions, needed to describe diffractive processes, directly from the conventional diagonal global parton distributions. We address doubts which have been raised about this procedure. We emphasise that the approach, on the one hand, satisfies all theoretical requirements, and, on the other hand, is consistent with DVCS data at NLO. We construct an easily accessible package for the computation of these skewed distributions.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s10052-009-1087-y