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Large field excursions from dimensional (de)construction
Journal of Cosmology and Astroparticle Physics ( IF 6.4 ) Pub Date : 2020-06-25 , DOI: 10.1088/1475-7516/2020/06/054
Kazuyuki Furuuchi , Suvedha Suresh Naik , Noel Jonathan Jobu

An inflation model based on dimensional (de)construction of a massive gauge theory is proposed. The inflaton in this model is the "zero-mode" of a component of the massive gauge field in the (de)constructed extra dimensions. The inflaton potential originates from the gauge invariant Stueckelberg potential. At low energy, the field range of the inflaton is enhanced by a factor $N^{\frac{d}{2}}$ compared to the field range of the original fields in the model, where $d$ is the number of the (de)constructed extra dimensions and $N$ is the number of the lattice points in each (de)constructed dimension. This enhancement of the field range is used to achieve a trans-Planckian inflaton field excursion. The extension of the mechanism ``excursions through KK modes'' to the case of (de)constructed extra dimensions is also studied. The burst of particle productions by this mechanism may have observable consequences in a region of the model parameter space.

中文翻译:

维(解)构的大范围游览

提出了一种基于量纲(解)构的大规模规范理论的膨胀模型。该模型中的暴胀子是(解构)额外维度中大量规范场分量的“零模”。暴胀子势源自规范不变的 Stueckelberg 势。在低能量下,与模型中原始场的场范围相比,暴胀子的场范围增加了一个因子 $N^{\frac{d}{2}}$,其中 $d$ 是(de) 构造的额外维度和 $N$ 是每个 (de) 构造的维度中的格点数。场范围的这种增强用于实现跨普朗克暴胀子场偏移。还研究了机制“通过 KK 模式的偏移”在(去)构造额外维度的情况下的扩展。
更新日期:2020-06-25
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