Reggeization of quark-quark scattering amplitude in QCD
High Energy Physics - Phenomenology
2009-10-28 v1
Abstract
-channel discontinuity of quark-quark scattering amplitude with gluon quantum numbers in the channel and negative signature is calculated in the Regge kinematical region in the two-loop approximation. Using this discontinuity and assuming that the Regge asymptotic behaviour is given by the Reggeized gluon contribution, we calculate the gluon trajectory in the two-loop approximation. Remarkable cancellations lead to the independence of the trajectory on properties of the scattered quarks, confirming the gluon Reggeization.
Cite
@article{arxiv.hep-ph/9506432,
title = {Reggeization of quark-quark scattering amplitude in QCD},
author = {V. S. Fadin and R. Fiore and A. Quartarolo},
journal= {arXiv preprint arXiv:hep-ph/9506432},
year = {2009}
}
Comments
31 pages+2figures(appended as a postscript file), Latex