Non-forward double Pomeron exchange in QCD

Abstract

We derive the analytic expression of the two one-loop dipole contributions to the elastic 4-gluon amplitude in QCD for arbitrary transverse momentum. The first one corresponds to the double QCD pomeron exchange, the other to an order ${\alpha }^2$ correction to one-pomeron exchange.

Comments: latex file, 7 pages. no figure, needs sprocl.sty. Contribution to the $th Workshop on QCD, paris, 1-6 June 1998