论文标题

$α$ a $ aftractor通货膨胀模型的观察限制类似于希格斯的潜力

Observational constraints on $α$-attractor inflationary models with a Higgs-like potential

论文作者

Rodrigues, J. G., da Costa, S. Santos, Alcaniz, J. S.

论文摘要

我们根据最新的宇宙微波背景(CMB)和大规模结构(LSS)数据研究了一类$α$ a-aftractors膨胀模型的观察性生存能力。通过考虑双孔潜力,我们进行了缓慢的分析来研究这类模型的行为,这是$α$的大值和通用吸引子的混乱通货膨胀之间的连续插值,即$ n_s = 1-2/n $ and n $ and $ r =α12/n n^$ n _ $ n _ $ n is $ n is calports us sarpepral,比率和$ n $是电子折数。为了探索模型的参数空间,我们还执行MCMC分析并找到$α= 7.56 \ pm 5.15 $($1σ$)。

We investigate the observational viability of a class of $α$-attractors inflationary models in light of the most recent Cosmic Microwave Background (CMB) and Large-Scale Structure (LSS) data. By considering a double-well potential we perform a slow-roll analysis to study the behavior of this class of models, which is a continuous interpolation between the chaotic inflation for large values of $α$ and the universal attractor, i.e., $n_s=1- 2/N$ and $r=α12/N^2$ for small $α$, where $n_s$ is the scalar spectral index, $r$ is the tensor-to-scalar ratio, and $N$ is the e-fold number. In order to explore the parameter space of the model, we also perform a MCMC analysis and find $α=7.56\pm 5.15$ ($1σ$).

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