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Updated: May 31, 2026

Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
Probing strong first-order electroweak phase transition scenarios in two-Higgs-doublet model with FCC-ee/CEPC
Anisha1,2, Francisco Arco3, Stefano Di Noi1
1Institute for Theoretical Physics, Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany.
Abstract:
We investigate the potential of future electron-positron colliders, such as FCC-ee and CEPC, to test a strong first-order electroweak phase transition (SFOEWPT) in the CP-conserving type I two-Higgs-doublet model. We confront the SFOEWPT-favored parameter space with projected electroweak precision and Higgs measurements, as well as searches for additional scalar states. We show that radiative corrections to production can generate deviations in the cross section that exceed the anticipated sub-percent precision at lepton colliders, even when LHC and Z-pole measurements remain consistent with the SM. Precision Higgs-strahlung measurements therefore provide an indirect and sensitive probe of electroweak-scale BSM effects.\query{Please check the edit made in the article title.}.
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