May 15 – 20, 2017
Shanghai Jiao Tong University
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Searching for Singlino-Higgsino Dark Matter in the NMSSM

May 16, 2017, 2:00 PM
Haoran 102 (Shanghai Jiao Tong University)

Haoran 102

Shanghai Jiao Tong University

Xuhui Campus


Mr Qian-Fei Xiang


We study a simplified scenario in the next-to-minimal supersymmetric standard model with a split electroweak spectrum, in which only the singlino and higgsinos are light and other superpartners are decoupled. Serving as a dark matter candidate, a singlino-dominated neutralino $\tilde{\chi}_1^0$ should have either resonant annihilation effects or sizable higgsino components to satisfy the observed relic abundance. The sensitivities of LHC searches and dark matter detection experiments are investigated. With an integrated luminosity of $30~(300)~\mathrm{fb}^{-1}$, $3l + E_\mathrm{T}$ and $2l + E_\mathrm{T}$ searches at the 13~(14)~TeV LHC are expected to reach up to $m_{\tilde{\chi}_1^0} \sim 150~(270)~\mathrm{GeV}$ and $m_{\tilde{\chi}_2^0,\tilde{\chi}_1^{\pm}}\sim 320~(500)~\mathrm{GeV}$. Near future dark matter direct and indirect detection experiments are promising to cover the parameter regions where collider searches lose their sensitivities.

Primary author

Mr Qian-Fei Xiang


Prof. Xiao-Jun Bi Mr Peng-Fei Yin Mr Zhao-Huan Yu

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