We investigate a scenario inspired by natural supersymmetry, where neutrino data is explained within a low-scale seesaw scenario. For this the minimal supersymmetric Standard Model is extended by adding light right-handed neutrinos and their superpartners, the R-sneutrinos. Moreover, we consider the lightest neutralinos to be Higgsino-like. We first update a previous analysis and assess to which extent does existing LHC data constrain the allowed slepton masses. Here we find scenarios where sleptons with masses as low as 175 GeV are consistent with existing data. However, we also show that the upcoming run will either discover or rule out sleptons with masses of 300 GeV, even for these challenging scenarios. We then take a scenario which is on the borderline of observability of the upcoming LHC run assuming a luminosity of $300{\mathrm{fb}}^{-1}$. We demonstrate that a prospective international $e^{+}{e}^{-}$ linear collider with a center of mass energy of 1 TeV will be able to discover sleptons in scenarios which are difficult for the LHC. Moreover, we also show that a measurement of the spectrum will be possible within 1–3 percent accuracy.

中文翻译：

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在 ILC 解决具有挑战性的超对称低尺度跷跷板场景

我们研究了一个受自然超对称启发的场景，其中中微子数据在低尺度跷跷板场景中得到解释。为此，最小超对称标准模型通过添加轻右手中微子及其超级伙伴 R-sneutros 进行了扩展。此外，我们认为最轻的中性粒子是类似 Higgsino 的。我们首先更新之前的分析并评估现有 LHC 数据在多大程度上限制了允许的 slepton 质量。在这里，我们发现质量低至 175 GeV 的 slepton 与现有数据一致的情况。然而，我们还表明，即使在这些具有挑战性的情况下，即将到来的运行也将发现或排除质量为 300 GeV 的 sleptons。然后，我们假设光度为即将到来的 LHC 运行的可观察性边界上的场景$300{\mathrm{脸书}}^{-1}$. 我们证明了一个未来的国际${\mathrm{电子}}^{+}{\mathrm{电子}}^{-}$质心能量为 1 TeV 的线性对撞机将能够在 LHC 难以处理的场景中发现 sleptons。此外，我们还表明可以在 1% 到 3% 的准确度内对频谱进行测量。