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Quark Contribution To The Small-π Evolution Of Color Dipole, Ian Balitsky
Quark Contribution To The Small-π Evolution Of Color Dipole, Ian Balitsky
Physics Faculty Publications
The small-π deep inelastic scattering in the saturation region is governed by the nonlinear evolution of Wilson-lines operators. In the leading logarithmic approximation it is given by the Balitsky-Kovchegov (BK) equation for the evolution of color dipoles. In the next-to-leading order (NLO) the nonlinear equation gets contributions from quark and gluon loops. In this paper I calculate the quark-loop contribution to small-π evolution of Wilson lines in the NLO. It turns out that there are no new operators at the one-loop levelβjust as at the tree level, the high-energy scattering can be described in terms of Wilson lines. In addition, β¦