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.
@article{arxiv.hep-ph/0201240,
title = {The quark Regge trajectory at two loops},
author = {A. V. Bogdan and V. Del Duca and V. S. Fadin and E. W. N. Glover},
journal= {arXiv preprint arXiv:hep-ph/0201240},
year = {2009}
}