1112.5958 (B. A. Magradze)

Strong Coupling Constant from $τ$ Decay within a Dispersive Approach
to Perturbative QCD    [PDF]

B. A. Magradze

We present a new dispersive framework for the extraction of the strong coupling constant $\alpha_s$ from $\tau$-lepton decays. A new feature of our procedure is the use of the quark-hadron duality on the limited region $s_{\rm d}View original: http://arxiv.org/abs/1112.5958