The Circular Electron Positron Collider and International Linear Collider are two electron positron Higgs factories. They are designed to operate at center-of-mass energy of 240 and 250 GeV and accumulate 5.6 and 2 ab−1 of integrated luminosity. Using CEPC official samples, the signal strength for Higgs to ττ events are analyzed. The combined accuracy of the signal strength for H→ττ at CEPC achieves 0.8\%. Extrapolating this analysis to the ILC setup, we conclude the ILC can reach a relative accuracy of 1.1\% or 1.2\%, corresponding to two benchmark settings of the beam polarization.
@article{arxiv.1903.12327,
title = {Higgs to $\tau\tau$ analysis in the future $e^{+}e^{-}$ Higgs factories},
author = {Dan Yu and Manqi Ruan and Vincent Boudry and Henri Videau and Jean-Claude Brient},
journal= {arXiv preprint arXiv:1903.12327},
year = {2020}
}