Gluon Regge trajectory in the two-loop approximation

1996/05/20 by V. S. Fadin, Roberto Fiore, R. Fiore +2 · 12 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1016/0370-2693(96)01054-4

published as Phys.Lett. B387 (1996) 593-602 · 13 pages, Latex

arxiv created 1996/05/20 · openalex publication_date 1996/10/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

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 inD-4 disappears in the trajectory and the expansion starts with (D-4)^-2.

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