6–11 Jul 2025
PALAIS DU PHARO, Marseille, France
Europe/Paris timezone

Absolute Higgs boson cross section, mass, and width at FCC-ee

10 Jul 2025, 09:10
20m
Salle La Major (Palais du Pharo)

Salle La Major

Palais du Pharo

Parallel T08 - Higgs Physics T08

Speaker

Xunwu Zuo (Karlsruhe Institute of Technology)

Description

The FCC-ee programme is uniquely positioned to provide unprecedented precision on the fundamental properties of the Higgs boson. At the center-of-mass energies 240 and 365 GeV, the FCC-ee will produce millions of Higgs bosons via Higgs-strahlung and vector boson fusion. The clean experimental environment allows a model-independent measurement of the absolute ZH cross-section to better than per-mil accuracy, directly determining the Higgs coupling to Z bosons. Utilizing the recoil-mass technique in leptonic and hadronic Z decays, the Higgs boson mass will be measured with a precision of a few MeV. Combining these measurements with precise determinations of exclusive branching ratios will yield the total Higgs width at percent-level precision. These measurements will significantly advance our understanding of the Standard Model and guide the search for new physics.

Authors

Markus Klute (KIT) Xunwu Zuo (Karlsruhe Institute of Technology)

Presentation materials

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