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arXiv 2005.07523hep-phhep-ex
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中微子望远镜对超对称性的新限制

New Constraints on Supersymmetry Using Neutrino Telescopes

Stephan Meighen-Berger, Matteo Agostini, Alejandro Ibarra, Kai Krings, Hans Niederhausen, Andreas Rappelt, Elisa Resconi, Andrea Turcati

摘要:

我们证明,兆吨级质量的中微子望远镜能够观察到的信号,从长寿命的粒子超越标准模型,特别是斯陶,超对称的合作伙伴的τ轻子。它的特征是探测器内有过量的带电粒子轨道,其水平到达方向和能量沉积在0.1到1 TeV之间。我们利用这个以前被忽视的签名在公开的IceCube数据中搜索Stau粒子。数据显示没有证据表明物理学超越了标准模型。本文导出了$320$ GeV(95\%C. L.)并估计,当这种新方法应用于冰立方合作提供的完整数据集时,将达到世界领先的对Stau质量($m_{\tildeτ}=450\,\mathrm{GeV}$)的灵敏度。

英文摘要:

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 ($m_{\tildeτ}=450\,\mathrm{GeV}$).

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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