Collinear limit of the energy-energy correlator in $e^{+}{e}^{-}$ collisions: transition from perturbative to non-perturbative regimes

Enrico Herrmann, Zhong-Bo Kang, Jani Penttala +1

We study the collinear limit of the energy-energy correlator (EEC) in $e^{+}{e}^{-}$ collisions, focusing on the transition from the perturbative QCD regime at relatively large angles to…