Projections of H$\toττ$ cross-section at FCC-ee

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Authors: S. Giappichini, M. Klute, M. Presilla, Xunwu Zuo, M. Cepeda
Cited by: 0

Abstract

The Future Circular Collider (FCC) stands at the forefront of the European Strategy for Particle Physics as the future flagship project at CERN. The H$\toττ$ decay, featuring a large branching ratio, clean identification in the FCC-ee environment, and the possibility to reconstruct polarization information, is an excellent channel to measure Higgs boson properties. This work shows the expected precision for the H$\toττ$ cross-section measurement at the FCC-ee in the ZH production mechanism at $\sqrt{s}=$240 GeV and $\sqrt{s}=$365 GeV, as well as via the vector boson fusion process at $\sqrt{s}=$365 GeV. Furthermore, we explore and evaluate a set of methods for reconstructing tau decays. These techniques are critical for unlocking the full physics potential of the FCC-ee and for improving the understanding of tau-related observables in both Standard Model measurements and New Physics searches. The results obtained significantly enhance the FCC-ee outlook in the H$\toττ$ channel, improving it by at least an order of magnitude compared to the current sensitivity of measurements' performance at the LHC.

Fields of Study & Subjects

Particle physics theoretical and experimental studies Particle Detector Development and Performance Quantum Chromodynamics and Particle Interactions

Publication details

Journal / source
arXiv (Cornell University)
Publication date
16 January 2026
Document type
Preprint