Speaker
Matthias Neubert
(Johannes Gutenberg University Mainz)
Description
We review an analysis of the low-energy dynamics of jets cross sections at hadron colliders, for which phase factors in the hard amplitudes spoil collinear factorization. We identify three-loop contributions from perturbative Glauber-gluon exchanges with the right structure to render the cross section consistent with PDF factorization below the gap veto scale. The Glauber contributions we identify are unambiguously defined without regulators beyond dimensional regularization.
