Gluon Regge Trajectory in the two-loop Approximation

Details Gluon Regge Trajectory in the two-loop Approximation Gluon Regge Trajectory in the two-loop Approximation

1996-05-20

arxiv.org/abs/hep-ph/9605357v1

Phys.Lett. B387 (1996) 593-602

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, Latex

Scientific paper

10.1016/0370-2693(96)01054-4

Evaluating two-loop integrals in the transverse momentum space we obtain the trajectory of the Reggeized gluon in QCD in an explicit form in the two-loop approximation. It is presented as an expansion in powers of $(D-4)$ for the space-time dimension $D$ tending to the physical value $D=4$. As the result of a remarkable cancellation the third order pole in$D-4$ disappears in the trajectory and the expansion starts with $(D-4)^{-2}$.

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