Title: Testing Split Supersymmetry with Inflation Show Chinese title

Title: 用暴胀检验分裂超对称性

Abstract: Split supersymmetry (SUSY) -- in which SUSY is relevant to our universe but largely inaccessible at current accelerators -- has become increasingly plausible given the absence of new physics at the LHC, the success of gauge coupling unification, and the observed Higgs mass. Indirect probes of split SUSY such as electric dipole moments (EDMs) and flavor violation offer hope for further evidence but are ultimately limited in their reach. Inflation offers an alternate window into SUSY through the direct production of superpartners during inflation. These particles are capable of leaving imprints in future cosmological probes of primordial non-gaussianity. Given the recent observations of BICEP2, the scale of inflation is likely high enough to probe the full range of split SUSY scenarios and therefore offers a unique advantage over low energy probes. The key observable for future experiments is equilateral non-gaussianity, which will be probed by both cosmic microwave background (CMB) and large scale structure (LSS) surveys. In the event of a detection, we forecast our ability to find evidence for superpartners through the scaling behavior in the squeezed limit of the bispectrum. Show Chinese abstract

Abstract: 分裂超对称（SUSY）——其中SUSY与我们的宇宙相关，但在当前加速器中大多无法探测——由于大型强子对撞机（LHC）中未发现新物理现象、规范耦合统一的成功以及观测到的希格斯粒子质量，变得越来越可信。 分裂SUSY的间接探测方法，如电偶极矩（EDMs）和味变，提供了进一步证据的希望，但最终在它们的探测范围上受到限制。 暴胀通过在暴胀期间直接产生超粒子，为SUSY提供了一个替代的观察窗口。 这些粒子能够在未来的原初非高斯性宇宙学探测中留下痕迹。 鉴于BICEP2的最近观测，暴胀的尺度可能足够高，足以探测分裂SUSY的所有情景，因此相比低能探测具有独特优势。 未来实验的关键可观测量是等边非高斯性，这将被宇宙微波背景（CMB）和大尺度结构（LSS）调查所探测。 如果检测到，我们将预测通过局域极限中双谱的标度行为来寻找超粒子的证据。