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arXiv · 1705.02534

An indirect probe of higgsino world at the CEPC

Ning Liu·Lei Wu
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Abstract

The higgsino world is one of the popular natural SUSY scenarios, in which $|μ| \ll M_{gauginos} \ll M_{scalars}$. 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 $e^+e^- \to W^+W^-$ at future Higgs factories, such as Circular Electron Positron Collider (CEPC) in China. we find that the higgsino mass parameter $μ\lesssim 210$ 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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Ning Liu, Lei Wu. 2017-12-03. An indirect probe of higgsino world at the CEPC. https://doi.org/10.1140/epjc%2Fs10052-017-5443-z

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