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

Fuente: arXiv
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Main Authors: Giappichini, Sofia, Klute, Markus, Presilla, Matteo, Zuo, Xunwu, Cepeda, Maria
Format: Preprint
Published: 2026
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author Giappichini, Sofia
Klute, Markus
Presilla, Matteo
Zuo, Xunwu
Cepeda, Maria
author_facet Giappichini, Sofia
Klute, Markus
Presilla, Matteo
Zuo, Xunwu
Cepeda, Maria
contents 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.
format Preprint
id arxiv_https___arxiv_org_abs_2601_11383
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Projections of H$\toττ$ cross-section at FCC-ee
Giappichini, Sofia
Klute, Markus
Presilla, Matteo
Zuo, Xunwu
Cepeda, Maria
High Energy Physics - Phenomenology
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.
title Projections of H$\toττ$ cross-section at FCC-ee
topic High Energy Physics - Phenomenology
url https://arxiv.org/abs/2601.11383