Next-to-leading non-global logarithms from jet calculus

Tuesday, 23 November 2021 at 11:15

Non-global QCD observables are characterised by a sensitivity to the full angular distribution of soft radiation emitted coherently in hard scattering processes. This complexity poses a challenge to their all-order resummation, that was formulated at the leading-logarithmic order about two decades ago. I will introduce a formalism for their calculation to higher orders in the planar limit, and present the first complete next-to-leading logarithmic result for these observables. As a case study I will consider the calculation of kinematic distributions in the interjet rapidity gap in e+e− → 2 jets, and also discuss the relevance of this technology for precision phenomenology at the LHC as well as for the development of parton-shower algorithms with higher perturbative accuracy.

Slides (PDF, 6 MB)