Abstract
The running BFKL equation gives rise to a series of moving poles in the complex j plane. The corresponding eigenfunctions (color dipole cross sections) are oscillatory functions of the color dipole size r. The first nodes for all subleading solutions (color dipole cross sections) are clustered at r 1∼0.1 fm. Therefore the processes dominated by dipole sizes r∼r 1 are free of subleading BFKL corrections. An example of practical importance is the leptoproduction of charm. Over a wide range of Q 2 the calculated F cc2 (x,Q 2) is exhausted by the leading BFKL pole and gives a perfect description of the experimental data.
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Pis’ma Zh. Éksp. Teor. Fiz. 69, No. 3, 176–180 (10 February 1999)
Published in English in the original Russian journal. Edited by Steve Torstveit.
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Nikolaev, N.N., Zoller, V.R. Precocious asymptopia for charm from the running BFKL. Jetp Lett. 69, 187–191 (1999). https://doi.org/10.1134/1.568004
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DOI: https://doi.org/10.1134/1.568004