Precocious asymptopia for charm from the running BFKL

Details Precocious asymptopia for charm from the running BFKL Precocious asymptopia for charm from the running BFKL

1998-12-21

arxiv.org/abs/hep-ph/9812461v1

JETP Lett. 69 (1999) 187-191

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, Latex, 5 Figures, PS

Scientific paper

10.1134/1.568004

The running BFKL equation gives rise to a series of moving poles in the complex j-plane. Corresponding eigenfunctions (color dipole cross sections) are the oscillating functions of the color dipole size $r$. The first nodes for all sub-leading solutions (color dipole cross sections) accumulate at $r_1\sim 0.1 fm$. Therefore the processes dominated by the dipole sizes $r\sim r_1$ are free of sub-leading BFKL corrections. A practically important example - the leptoproduction of charm. In a wide range of $Q^2$ the calculated $F_2^{cc}(x,Q^2)$ is exhausted by the leading BFKL pole and gives a perfect description of the experimental data.

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