Non-global logarithms in hadron collisions at Nc = 3

Abstract

We calculate the rapidity gap survival probability associated with the Higgs decay and Higgs plus dijet production in proton-proton collisions by resumming the leading non-global logarithms without any approximation to the number of colors. For dijet production, depending on partonic subprocesses, the probability involves various ‘color multipoles’, i.e., the product of 4 (qq→qq) or 6 (qg→qg) or 8 (gg→gg) Wilson lines. We calculate all these multipoles for a fixed dijet configuration and discuss the factorization of higher multipoles into lower multipoles as well as the validity of the large-Nc approximation.