Constraints on the anomalous Higgs boson couplings in $Z\gamma\gamma$ production at muon collider

Serdar Spor

doi:10.1016/j.nuclphysb.2025.117170

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arXiv · 2501.11664

Constraints on the anomalous Higgs boson couplings in $Z\gamma\gamma$ production at muon collider

Serdar Spor

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Abstract

We investigate the sensitivities on the Wilson coefficients of dimension-six operators associated with the anomalous $H\gamma\gamma$, $H\gamma Z$ and $HZZ$ vertices through the process $\mu^- \mu^+ \rightarrow Z\gamma\gamma$ at future muon collider. Signal events involving Higgs-gauge boson interactions and relevant backgrounds events at the muon collider designed with a center-of-mass energy of 10 TeV and an integrated luminosity of 10 ab$^{-1}$ are generated in Madgraph within the framework of the model-independent Standard Model effective field theory. Realistic detector effects of the muon collider detector are simulated by Delphes. The limits at 95% C.L., $3\sigma$ and $5\sigma$ on the coefficients $\overline{c}_{HB}$ and $\overline{c}_{HW}$ are obtained without and with systematic uncertainty of 15% and compared with the present experimental and phenomenological limits.

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Serdar Spor. 2025-01-20. Constraints on the anomalous Higgs boson couplings in $Z\gamma\gamma$ production at muon collider. https://doi.org/10.1016/j.nuclphysb.2025.117170

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