Precocious asymptopia for charm from the running BFKL
Abstract
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.
- Publication:
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Soviet Journal of Experimental and Theoretical Physics Letters
- Pub Date:
- February 1999
- DOI:
- 10.1134/1.568004
- arXiv:
- arXiv:hep-ph/9812461
- Bibcode:
- 1999JETPL..69..187N
- Keywords:
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- High Energy Physics - Phenomenology
- E-Print:
- 5 pages, Latex, 5 Figures, PS