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arXiv · 2101.12131

Probing bino NLSP at lepton colliders

Junmou Chen·Chengcheng Han·Jin Min Yang·Mengchao Zhang
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Abstract

We consider a scenario where light bino is the next-to-lightest supersymmetric particle (NLSP) and gravitino/axino is the lightest superysmmetric particle (LSP). For a bino mass less than or around hundred GeV, it can be pair produced at the future lepton colliders through $t-$channel slepton exchange, subsequently decaying into a gravitino/axino plus a photon. We study the prospects to look for such binos at the future colliders and find that a bino mass around 100 GeV can be probed at the $2\sigma$ ($5\sigma$) level for a slepton below 2 TeV (1.5 TeV) with a luminosity 3 $ab^{-1}$. For a bino mass around 10 GeV, a slepton mass less than 4 TeV (3 TeV) can be probed at the $2\sigma$ ($5\sigma$) level, which is much beyond the reach of the LHC for direct slepton searches.

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Junmou Chen, Chengcheng Han, Jin Min Yang, Mengchao Zhang. 2021-01-28. Probing bino NLSP at lepton colliders. https://doi.org/10.1103/physrevd.104.015009

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