Precise measurements of the lepton properties provide stringent tests of the Standard Model
and accurate determinations of its parameters. We overview the present status of τ physics …

The inspiration for this book came from François le Diberder. During his term as
spokesperson for B 八 B 八 R he laid down a vision for the two B Factory detector …

The inclusive production of hadrons through electroweak currents can be rigorously
analysed with short-distance theoretical tools. The associated observables are insensitive to …

A bstract Hadronic τ decays are studied as probe of new physics. We determine the
dependence of several inclusive and exclusive τ observables on the Wilson coefficients of …

A bstract We propose a simple and easy-to-implement scheme for a renormalon-free gluon
condensate (GC) matrix element, which is analogous to implementations of short-distance …

A bstract Perturbative QCD corrections to hadronic τ decays and e+ e− annihilation into
hadrons below charm are obtained from the Adler function, which at present is known in the …

A bstract Various moments of the hadronic spectral functions have been employed in the
determination of the strong coupling α s from tau decays. In this work we study the behaviour …

In a previous work by one of the authors, it was demonstrated that the discrepancy between
the fixed-order and contour-improved (CIPT) perturbative expansions for τ-lepton decay …

A bstract We present a novel method for precisely determining the QCD running coupling
from R uds measurements in electron-positron annihilation. When calculating the fixed-order …

In contrast to the coupling parameter in the usual perturbative QCD (pQCD), the coupling
parameter in the analytic QCD models has cuts only on the negative semiaxis of the Q 2 …