论文标题

在通货膨胀后重新加热期间标准模型希格斯的影响原始非高斯

Primordial non-Gaussianity from the Effects of the Standard Model Higgs during Reheating after Inflation

论文作者

Litsa, Aliki, Freese, Katherine, Sfakianakis, Evangelos I., Stengel, Patrick, Visinelli, Luca

论文摘要

我们提出了一种在极高能量下研究希格斯潜力的新方法。标准模型(SM)希格斯玻色子(Higgs Boson)作为早期宇宙通货膨胀期间的光观众场,可以从不同因果(哈勃)斑块之间变化的量子波动中获取较大的场值。通货膨胀结束后,希格斯的这种空间依赖性导致空间依赖性的SM粒子质量,因此当充气衰减到希格斯的SM颗粒时,重新加热的效率可变。不均匀的加热导致(可观察)温度各向异性。此外,所得的温度各向异性频谱获得了重要的非高斯组件,该成分受$ \ textit {planck} $观测的约束,对宇宙微波背景(CMB)的观测值,在下一代实验中可能被检测到。对该非高斯信号的限制在很大程度上排除了主要由希格斯效应引起的观察到的温度各向异性的可能性。因此,原则上,可以使用CMB中非高斯性的观察性搜索来限制非常高(膨胀)能量的希格斯玻色子的动力学。

We propose a new way of studying the Higgs potential at extremely high energies. The Standard Model (SM) Higgs boson, as a light spectator field during inflation in the early Universe, can acquire large field values from its quantum fluctuations which vary among different causal (Hubble) patches. Such a space dependence of the Higgs after the end of inflation leads to space-dependent SM particle masses and hence variable efficiency of reheating, when the inflaton decays to Higgsed SM particles. Inhomogeneous reheating results in (observable) temperature anisotropies. Further, the resulting temperature anisotropy spectrum acquires a significant non-Gaussian component, which is constrained by $\textit{Planck}$ observations of the Cosmic Microwave Background (CMB) and potentially detectable in next-generation experiments. Constraints on this non-Gaussian signal largely exclude the possibility of the observed temperature anisotropies arising primarily from Higgs effects. Hence, in principle, observational searches for non-Gaussianity in the CMB can be used to constrain the dynamics of the Higgs boson at very high (inflationary) energies.

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