DVCS via color dipoles: Nonperturbative effects

Details DVCS via color dipoles: Nonperturbative effects DVCS via color dipoles: Nonperturbative effects

2008-12-20

arxiv.org/abs/0812.3992v2

Phys.Rev.D79:034019,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages; references added, bibliographic inaccuracy corrected

Scientific paper

10.1103/PhysRevD.79.034019

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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