Measurement of $\mathrm{H}\to {\mu }^{+}{\mu }^{-}$ production in association with a Z boson at the CEPC

Abstract

The Circular Electron-Positron Collider (CEPC) is a future Higgs factory proposed by the Chinese high energy physics community. It will operate at a center-of-mass energy of 240-250 GeV and is expected to accumulate an integrated luminosity of 5 ab${}^{-1}$ with ten years of operation. At CEPC, Higgs bosons are dominantly produced from $ZH$ associated process. Vast amount of Higgs events collected will enable precise studies of its properties including Yukawa couplings to massive particles. With {\sc GEANT4}-based simulation of detector effects, we study CEPC feasibility on measuring Higgs boson decaying into a pair of muons. The results with or without information from Z boson decay products are provided, which show a signal significance of over 10 standard deviations can be achieved and the H-$\mu$-$\mu$ coupling can be measured within $10\%$ accuracy.

7 pages, 7 figures

References in corpus (4)

• Combined Measurement of the Higgs Boson Mass in $pp$ Collisions at $\sqrt{s}=7$ and 8 TeV with the ATLAS and CMS Experiments
• Precise determination of the mass of the Higgs boson and tests of compatibility of its couplings with the standard model predictions using proton collisions at 7 and 8 TeV
• Search for a standard model-like Higgs boson in the mu+ mu- and e+ e- decay channels at the LHC
• Search for the Standard Model Higgs boson decay to ${\mu }^{+}{\mu }^{-}$ with the ATLAS detector

Cited by in corpus (2)

• Charged lepton flavor violating Higgs decays at future $e^{+}{e}^{-}$ colliders
• Expected $H\to {\mu }^{+}{\mu }^{-}$ measurement precision with $e^{+}{e}^{-}\to Z(q\bar{q})H$ production at the CEPC