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 ( q q → q q ) or 6 ( q g → q g ) or 8 ( g g → g g ) 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- N c approximation.