An improved theoretical prediction for the 2-jet rate in e+e− annihilation

We show that an Ansatz to resum all leading and next-to-leading logarithms in the theoretical prediction for the 2-jet rate in e+e− → hadrons, where jets are defined with the kt-algorithm, is consistent with a full O(αs2) calculation done by Monte Carlo integration. From the asymptotic behaviour of the full O(αs2) calculation we extract the subleading coefficient G21 and the constant C2.