NLO evolution of color dipoles

Details NLO evolution of color dipoles NLO evolution of color dipoles

2007-10-23

arxiv.org/abs/0710.4330v1

Phys.Rev.D77:014019,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

43 pages, 12 figures

Scientific paper

10.1103/PhysRevD.77.014019

The small-$x$ deep inelastic scattering in the saturation region is governed by the non-linear evolution of Wilson-line operators. In the leading logarithmic approximation it is given by the BK equation for the evolution of color dipoles. In the next-to-leading order the BK equation gets contributions from quark and gluon loops as well as from the tree gluon diagrams with quadratic and cubic nonlinearities. We calculate the gluon contribution to small-x evolution of Wilson lines (the quark part was obtained earlier).

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