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DVCS via color dipoles: Nonperturbative effects

Authors
  • Kopeliovich, B. Z.
  • Schmidt, Ivan
  • Siddikov, M.
Type
Published Article
Publication Date
Dec 29, 2008
Submission Date
Dec 20, 2008
Identifiers
DOI: 10.1103/PhysRevD.79.034019
Source
arXiv
License
Yellow
External links

Abstract

We study the DVCS amplitude within the color dipole approach. The light-cone wave function of a real photon is evaluated in the instanton vacuum model. Our parameter free calculations are able to describe H1 data, both the absolute values and the $t$-dependences, at medium-high values of $Q^{2}$. The $Q^{2}$ dependence is found to be sensitive to the choice of the phenomenological cross section fitted to DIS data.

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