Issues in the GPD formulation of DVCS

B.L.G. Bakker; C.R. Ji

doi:10.5506/APhysPolBSupp.6.131

Issues in the GPD formulation of DVCS

B.L.G. Bakker, C.R. Ji

(Astro)-Particles Physics

Research output: Contribution to Journal › Article › Academic › peer-review

Abstract

Virtual Compton scattering (VCS) can be used to explore the structure of hadrons. In the domain of large energy and momentum transfers, VCS is complementary to deep-inelastic scattering. If the kinematics is collinear, generalized parton distributions (GPDs) are widely used to describe VCS. This formulation satisfies electromagnetic gauge invariance only approximately. We propose to analyze experimental data in terms of Coulomb form factors, which occur in a gauge invariant formulation of Compton scattering, do not depend on the kinematics and can be related to GPDs in the deeply virtual limit.

Original language	English
Pages (from-to)	131-136
Number of pages	6
Journal	Acta Physica Polonica B, Proceedings Supplement
Volume	6
Issue number	1
DOIs	https://doi.org/10.5506/APhysPolBSupp.6.131
Publication status	Published - Mar 2013
Event	Modern approaches to nonperturbative gauge theories and their applications (Light Cone 2012) - Duration: 9 Jul 2012 → 13 Jul 2012

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title = "Issues in the GPD formulation of DVCS",

abstract = "Virtual Compton scattering (VCS) can be used to explore the structure of hadrons. In the domain of large energy and momentum transfers, VCS is complementary to deep-inelastic scattering. If the kinematics is collinear, generalized parton distributions (GPDs) are widely used to describe VCS. This formulation satisfies electromagnetic gauge invariance only approximately. We propose to analyze experimental data in terms of Coulomb form factors, which occur in a gauge invariant formulation of Compton scattering, do not depend on the kinematics and can be related to GPDs in the deeply virtual limit.",

author = "B.L.G. Bakker and C.R. Ji",

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AU - Ji, C.R.

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AB - Virtual Compton scattering (VCS) can be used to explore the structure of hadrons. In the domain of large energy and momentum transfers, VCS is complementary to deep-inelastic scattering. If the kinematics is collinear, generalized parton distributions (GPDs) are widely used to describe VCS. This formulation satisfies electromagnetic gauge invariance only approximately. We propose to analyze experimental data in terms of Coulomb form factors, which occur in a gauge invariant formulation of Compton scattering, do not depend on the kinematics and can be related to GPDs in the deeply virtual limit.

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DO - 10.5506/APhysPolBSupp.6.131

M3 - Article

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JO - Acta Physica Polonica B, Proceedings Supplement

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IS - 1

T2 - Modern approaches to nonperturbative gauge theories and their applications (Light Cone 2012)

Y2 - 9 July 2012 through 13 July 2012

ER -

Issues in the GPD formulation of DVCS

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