BFKL versus HERA

Details BFKL versus HERA BFKL versus HERA

1995-08-11

arxiv.org/abs/hep-ph/9508285v1

Phys.Rev. D53 (1996) 80-88

Physics

High Energy Physics

High Energy Physics - Phenomenology

26 pages, 6 eps figures, LaTeX2e using epsfig.sty and amssymb.sty

Scientific paper

10.1103/PhysRevD.53.80

The BFKL equation and the kT-factorization theorem are used to obtain predictions for F2 in the small Bjorken-x region over a wide range of Q**2. The dependence on the parameters, especially on those concerning the infrared region, is discussed. After a background fit to recent experimental data obtained at HERA and at Fermilab (E665 experiment), we find that the predicted, almost Q**2 independent BFKL slope lambda >= 0.5 appears to be too steep at lower Q**2 values. Thus there seems to be a chance that future HERA data can distinguish between pure BFKL and conventional field theoretic renormalization group approaches.

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