Projections of H$\toττ$ cross-section at FCC-ee
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2026
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| _version_ | 1866913014726262784 |
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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 |