Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1997-07-25
JETP Lett. 66 (1997) 138-143; Pisma Zh.Eksp.Teor.Fiz. 66 (1997) 134-138
Physics
High Energy Physics
High Energy Physics - Phenomenology
6 pages Latex + 5 Figures PS
Scientific paper
10.1134/1.567491
We calculate the Regge trajectories of the subleading BFKL singularities and eigenfunctions for the running BFKL pomeron in the color dipole representation. We obtain a viable BFKL-Regge expansion of the proton structure function $F_{2p}(x,Q^2)$ in terms of several rightmost BFKL singularities. We find large subleading contributions to $F_{2p}(x,Q^2)$ in the HERA kinematical region which explains the lack of a predictive power of GLDAP-extrapolations of $F_{2p}(x,Q^2)$ to a domain of small $x$. We point out the relation of our early finding of the precocious BFKL asymptotics to the nodal structure of subleading BFKL eigenfunctions.
Nikolaev Nikolai N.
Zakharov Bronislav G.
Zoller Vladimir R.
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