${\alpha }_s$ and ${\mathrm{V}}_{\mathrm{cs}}$ determination, and CKM unitarity test, from W decays at NNLO

David d'Enterria, Matej Srebre

The hadronic (${\Gamma }_{\mathrm{had}}^{\mathrm{W}}$) and total (${\Gamma }_{\mathrm{tot}}^{\mathrm{W}}$) widths of the W boson, computed at least at next-to-next-to-leading-order (NNLO) accuracy, are combined to de…