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arXiv 1601.03221astro-ph.COgr-qchep-ph
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混合自然通货膨胀

Hybrid Natural Inflation

Graham G. Ross, Gabriel German, J. Alberto Vazquez

摘要:

我们构建了两个简单的有效场论版本的{ \it混合自然暴胀(HNI)},说明其唯象意义的范围。由此产生的暴胀扇形势$V=Δ^4(1+a\cos(ϕ/f))$是自然产生的,暴胀子场是一种伪南布-戈德斯通玻色子。暴胀的结束是由瀑布场触发的,并且这种情况发生的条件是确定的。同样令人感兴趣的是,慢滚参数$ε$(以及张量$r$)是场的非单调函数,具有最大值,其中观测值取确定最大可能的张量与标量比$r$的普适值。在其中一个模型中,暴胀尺度可以低至电弱尺度。我们详细探讨了相关的HNI现象,考虑到黑洞生产的限制,并执行详细的普朗克2015年的温度和偏振数据。

英文摘要:

We construct two simple effective field theory versions of {\it Hybrid Natural Inflation (HNI)} that illustrate the range of its phenomenological implications. The resulting inflationary sector potential, $V=Δ^4(1+a\cos(ϕ/f))$, arises naturally, with the inflaton field a pseudo-Nambu-Goldstone boson. The end of inflation is triggered by a waterfall field and the conditions for this to happen are determined. Also of interest is the fact that the slow-roll parameter $ε$ (and hence the tensor $r$) is a non-monotonic function of the field with a maximum where observables take universal values that determines the maximum possible tensor to scalar ratio $r$. In one of the models the inflationary scale can be as low as the electroweak scale. We explore in detail the associated HNI phenomenology, taking account of the constraints from Black Hole production, and perform a detailed fit to the Planck 2015 temperature and polarisation data.

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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