Soft gluons in the infinite-momentum wave function and the BFKL pomeron

Abstract

We construct the infinite-momentum wave function for arbitrary numbers of soft gluons in a heavy quark-antiquark, onium, state. The soft gluon part of the wave function is constructed exactly within the leading logarithmic and large-Nc limits. The BFKL pomeron emerges when gluon number densities are evaluated.