Probability-based Estimates of the Uncalculated N${}^5$LO QCD Contribution to the Hadronic $W$-Boson Decay Width

Shu-Heng Yang, Jiang Yan, Xing-Gang Wu +1

The perturbative QCD corrections to the hadronic decay width of the $W$ boson are currently known up to next-to-next-to-next-to-next-to-leading order (${\mathrm{N}}^4\mathrm{LO}$), whereas th…