Solving the BFKL equation with running coupling

J. R. Forshaw, D. A. Ross, A. Sabio Vera

    Research output: Contribution to journalArticlepeer-review


    We describe a formalism for solving the BFKL equation with a coupling that runs for momenta above a certain infrared cutoff. By suitably choosing matching conditions proper account is taken of the fact that the BFKL diffusion implies that the solution in the infrared (fixed coupling) regime depends upon the solution in the ultraviolet (running coupling) regime and vice versa. Expanding the BFKL kernel to a given order in the ratio of the transverse momenta allows arbitrary accuracy to be achieved. © 2001 Published by Elsevier Science B.V.
    Original languageEnglish
    Pages (from-to)149-155
    Number of pages6
    JournalPhysics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics
    Issue number3-4
    Publication statusPublished - 25 Jan 2001


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