We study cosmological inflation in a Galileon inflationary model with the E-model potential to find possible α-attractors. First, we calculate evolution of the perturbations in our setup. By adopting E-model potential, we show that values of the scalar spectral index and tensor-to-scalar ratio are universal. Also, we consider the reheating phase after inflation in this model. We compare the results with the Planck data and we find some constraints on the model’s parameter space. We find that in a Galileon inflation model, the reheating phase can last longer than that in the Standard Model. Also, in this model, the larger range of temperature is corresponding to observational viable values of ns.

中文翻译：

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一类伽利略暴胀中的α吸引子和再加热

我们在具有 E 模型潜力的 Galileon 暴胀模型中研究宇宙暴胀α-吸引子。首先，我们计算设置中扰动的演变。通过采用 E 模型势，我们表明标量谱指数和张量与标量比的值是通用的。此外，我们在此模型中考虑了膨胀后的再加热阶段。我们将结果与普朗克数据进行比较，发现模型参数空间存在一些约束。我们发现在伽利略暴胀模型中，再加热阶段的持续时间比标准模型中的要长。此外，在这个模型中，较大的温度范围对应于观测的可行值ns.