The BFKL high energy asymptotics in the next-to-leading approximation

Details The BFKL high energy asymptotics in the next-to-leading approximation The BFKL high energy asymptotics in the next-to-leading approximation

1998-06-02

arxiv.org/abs/hep-ph/9806228v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

20 pp, latex file, two references and footnote added

Scientific paper

10.1016/S0550-3213(99)00083-8

We discuss the high energy asymptotics in the next-to-leading (NLO) BFKL equation. We find a general solution for Green functions and consider two properties of the NLO BFKL kernel: running QCD coupling and large NLO corrections to the conformal part of the kernel. Both of these effects lead to Regge-BFKL asymptotics only in the limited range of energy ($y = \ln(s/q q_0) \leq (\as)^{- {5/3}}$) and change the energy behaviour of the amplitude for higher values of energy. We confirm the oscillation in the total cross section found in Ref. \cite{ROSS} in the NLO BFKL asymptotics, which shows that the NLO BFKL has a serious pathology.

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