Loops in the gluon emission amplitude: reggeization from the Glauber scattering

Abstract

It is shown that in the Glauber scattering of a fast quark in the external field loop corrections to the gluon emission amplitude due to virtual softer gluon after renormalization coincide with a correction due to reggeization of the exchanged gluon in the BFKL picture.

Comments: 26 pages, 10 figures