M. Braun et Gp. Vacca, The bootstrap and the 2nd order corrections for the interaction of two reggeized gluons, PHYS LETT B, 454(3-4), 1999, pp. 319-327
The bootstrap relation is discussed up to the 2nd order. From the strong bo
otstrap condition and a specific ansatz to solve it the 2nd order correctio
ns are obtained to both forward and nonforward interaction of reggeized glu
ons in the octet colour channel. The obtained forward kernel coincides with
the logarithmic term plus two first non-logarithmic terms in the Pomeron 2
nd order kernel. Both forward and nonforward kernels are found to be infrar
ed finite. (C) 1999 Elsevier Science B.V. All rights reserved.