P oS(RAD COR 2007)048 Event shapes in e+e − annhilation at NNLO

We report first results on the calculation of NNLO corrections to event shape distributions in electron-positron annhilation. The corrections are sizeable for all variables, however their magni-tude is substantially different for different observables. We observe that inclusion of the NNLO corrections yields a considerably better agreement between theory and experimental data both in shape and normalisation of the event shape distributions. 8th International Symposium on Radiative Corrections (RADCOR