Three-jet production in electron-positron collisions using the   CoLoRFulNNLO method
  We introduce a subtraction method for jet cross sections at next-to-next-to-leading order (NNLO) accuracy in the strong coupling and use it to compute event shapes in three-jet production in electron-positron collisions. We validate our method on two event shapes, thrust and C-parameter, which are already known in the literature at NNLO accuracy and compute for the first time oblateness and the energy-energy correlation at the same accuracy. 
Vittorio Del Duca, Claude Duhr, Adam Kardos, G\'abor Somogyi and   Zolt\'an Tr\'ocs\'anyi
hep-ph