Probing colour flow with jet vetoes

Abstract

We discuss jet vetoes as a means of probing colour flow in hard-scattering processes in hadronic collisions. As an example, we describe a calculation of the dijet cross-section with a jet veto, which resums the leading logarithms of the veto scale and is matched to a fixed-order computation. We compare this prediction to the measurement performed by the ATLAS collaboration. Finally, we outline future developments in this research area.

Comments: Talk given at XX International Workshop on Deep-Inelastic Scattering and Related Subjects, 26th-30th March 2012, University of Bonn