论文标题
使用中微子望远镜对超对称的新约束
New Constraints on Supersymmetry Using Neutrino Telescopes
论文作者
论文摘要
我们证明，梅加顿 - 质量中微子中微子望远镜能够观察到超出标准模型以外的长寿命颗粒的信号，尤其是tau Lepton的超对称伴侣STAU。它的签名是过量的带电粒子轨道，其水平到达方向和能量沉积在检测器内的0.1至1 TEV之间。我们利用了以前被忽视的签名来搜索公开可用的ICECUBE数据中的Stau粒子。数据显示出除标准模型之外没有物理的证据。我们对STAU质量的新下限限制为$ 320 $ GEV（95 \％c.l.），并估计，当将这种新方法应用于IceCube协作可用的完整数据集时，将达到对STAU质量的敏感性（$ M _ {\ tilde感} = 450 = 450 f，
We demonstrate that megaton-mass neutrino telescopes are able to observe the signal from long-lived particles beyond the Standard Model, in particular the stau, the supersymmetric partner of the tau lepton. Its signature is an excess of charged particle tracks with horizontal arrival directions and energy deposits between 0.1 and 1 TeV inside the detector. We exploit this previously-overlooked signature to search for stau particles in the publicly available IceCube data. The data shows no evidence of physics beyond the Standard Model. We derive a new lower limit on the stau mass of $320$ GeV (95\% C.L.) and estimate that this new approach, when applied to the full data set available to the IceCube collaboration, will reach world-leading sensitivity to the stau mass ($m_{\tildeτ}=450\,\mathrm{GeV}$).
