The quark Regge trajectory at two loops

Abstract

The hypothesis of the quark Reggeization is tested by taking the high-energy limit of the two-loop amplitude for quark-gluon scattering which was recently calculated. The limit is compatible with the Reggeization in the leading and the next-to-leading orders and allows the determination of the quark trajectory in the two-loop approximation. The trajectory is presented as an expansion in powers of (D-4) for the space-time dimension $D$ tending to the physical value D=4.

14 pages, LaTeX, JHEP3 class

References in corpus (4)

• Multi-Parton Amplitudes in Gauge Theories
• Two-loop QCD corrections to massless quark-gluon scattering
• The high energy limit of QCD at two loops
• Calculation of Reggeon Vertices in QCD

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