论文标题
寻找未来电子船员的标量Lepton合作伙伴
Hunting for Scalar Lepton Partners at Future Electron Colliders
论文作者
论文摘要
接近电动量表量表的新物理学是由许多理论论点充分激励的。但是，最著名的是大型强子对撞机（LHC），但未能提供超出标准模型的物理学的证据。到目前为止，新电动尺度粒子如何避免检测的可能性是，如果它们仅携带电荷电荷，即颜色中性。未来的$ e^+e^ - $ colliders是研究这种新物理学的主要工具。在这里，我们研究了$ e^+e^ - $ colliders对带电瘦素的标量伴侣的敏感性，该链球子在标准模型的超对称扩展中被称为Sleptons。为了允许这种标量Lepton伴侣衰减，我们考虑了具有额外中性费米的模型，在超对称模型中，该模型与中性诺相对应。我们证明，未来的$ e^+e^ - $ colliders将能够探测大多数运动式可访问的参数空间，即标量Lepton合作伙伴的质量不到对撞机中心中心能量的一半，只有几天的数据。除了限制更通用的模型外，这还可以在最小的超对称标准模型中探索一些动机的暗物质情景，尤其是令人难以置信的散装和STAU共同宣传场景。
New physics close to the electroweak scale is well motivated by a number of theoretical arguments. However, colliders, most notably the Large Hadron Collider (LHC), have failed to deliver evidence for physics beyond the Standard Model. One possibility for how new electroweak-scale particles could have evaded detection so far is if they carry only electroweak charge, i.e. are color neutral. Future $e^+e^-$ colliders are prime tools to study such new physics. Here, we investigate the sensitivity of $e^+e^-$ colliders to scalar partners of the charged leptons, known as sleptons in supersymmetric extensions of the Standard Model. In order to allow such scalar lepton partners to decay, we consider models with an additional neutral fermion, which in supersymmetric models corresponds to a neutralino. We demonstrate that future $e^+e^-$ colliders would be able to probe most of the kinematically accessible parameter space, i.e. where the mass of the scalar lepton partner is less than half of the collider's center-of-mass energy, with only a few days of data. Besides constraining more general models, this would allow to probe some well motivated dark matter scenarios in the Minimal Supersymmetric Standard Model, in particular the incredible bulk and stau co-annihilation scenarios.
