Speaker
Diogo Boito
Description
The mathematical method of Padé approximants is put forward to reconstruct the Borel transformed series of the correlator triggering either the tau or the Higgs decay and extract higher-order corrections in a model-independent way. The use of the D-log Padé approximants provides valuable information to its analytic structure and yields, together with the standard Padé approximants, reliable model-independent predictions of the higher-order coefficients. Such reconstruction strongly favours the use of fixed-order perturbation theory (FOPT) for the renormalization-scale setting
