MSSM at future Higgs factories

In this work, we study the implications of Higgs precision measurements at future Higgs factories for the MSSM parameter space, focusing on the dominant stop sector contributions. We perform a multi-variable fit to both the signal strength for various Higgs decay channels at Higgs factories and the Higgs mass. The χ² fit results show sensitivity to m_A, tan β, stop mass parameter m_SUSY , and the stop left-right mixing parameter Xt. We also study the impact of the Higgs mass prediction on the MSSM and compare the sensitivities of different Higgs factories. * HL was Supported by the National Natural Science Foundation of China (NNSFC) (11635009) and Natural Science Foundation of Shandong Province (ZR2017JL006). HS and SS are Supported in part by the Department of Energy (DE-FG02-13ER41976/DE-SC0009913). WS is Supported by the Australian Research Council (ARC) Centre of Excellence for Dark Matter Particle Physics (CE200100008). JMY was Supported by the National Natural Science Foundation of China (NNSFC) (12075300, 11821505, 11851303), Peng-Huan-Wu Theoretical Physics Innovation Center (11947302), the CAS Center for Excellence in Particle Physics (CCEPP), the CAS Key Research Program of Frontier Sciences and by a Key RD Program of Ministry of Science and Technology (2017YFA0402204)