1212.3733 (A. V. Kotikov)

Small x behavior of parton distributions. Analytical and "frozen"
coupling constants. BFKL corrections    [PDF]

A. V. Kotikov

It is shown that in the leading twist approximation of the Wilson operator product expansion with "frozen" and analytic strong coupling constants, Bessel-inspired behavior of the structure functions F2 and F2cc and also the derivative d(ln F2)/d(ln(1/x)) at small x values, obtained for a flat initial condition in the DGLAP evolution equations, leads to good agreement with the deep inelastic scattering experimental data from HERA.

View original: http://arxiv.org/abs/1212.3733