NNLL Resummation of Event-Shapes in $e^+e^-$ Annihilation
Heather McAslan · Proceedings of XXIII International Workshop on Deep-Inelastic Scattering — PoS(DIS2015) · 2016
Event shape observables are essential tools for studying the behaviour of high energy QCD.Yet in the dijet region, standard perturbation theory is rendered unreliable and the series must be resummed to all orders in the strong coupling.We have recently developed a general method for the resummation of event shapes, in e+e-annihilation, at next-to-next-to-leading logarithmic accuracy.We have implemented the novel method semi-numerically and reproduced four alreadyknown predictions, as well as three new results.We match our findings to fixed-order results, up to NNLO.