An indirect probe of higgsino world at the CEPC
Abstract
The higgsino world is one of the popular natural SUSY scenarios, in which |μ| Mgauginos Mscalars. As such, searching for light degenerate higgsinos becomes an essential task of testing naturalness in supersymmetry (SUSY). In this work, we study the indirect effects of light higgsinos in the process e+e- W+W- at future Higgs factories, such as Circular Electron Positron Collider (CEPC) in China. we find that the higgsino mass parameter μ 210 GeV favored by naturalness can be covered if the accuracy of the measurement of W+W- production can reach 0.1\% at 240 GeV CEPC.
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