论文标题
模量稳定在嵌套双向翘曲的Braneworld模型中
Moduli stabilization with bulk scalar in nested doubly warped braneworld model
论文作者
论文摘要
我们检查了带有嵌套翘曲的扭曲几何模型的模量稳定机制。已知具有多种模量的模型可以在标准模型中提供Fermion质量层次结构问题的分辨率。正在考虑的六维双扭曲的Braneworld模型承认了两个不同的模量，相关的翘曲因子在四个3烧烤方面动态产生不同的物理质量尺度。为了解决与希格斯质量相关的层次结构问题，两个模量都需要围绕其所需值稳定，而无需任何极端的微调参数。我们表明，由于有效的4D模量电势的出现，可以同时稳定它们，该电位是由一个冻结在3个炉子上的非零VEVS的单个散装标量场产生的。我们还讨论了如何从纯粹的引力的角度来理解整个机制，在散装中，较高的曲率F（R）贡献自动提供了标量的自由度，该自由度可以作为爱因斯坦框架中稳定场的稳定场。
We examine the modulus stabilization mechanism of a warped geometry model with nested warping. Such a model with multiple moduli is known to offer a possible resolution of the fermion mass hierarchy problem in the standard model. A six dimensional doubly warped braneworld model under consideration admits two distinct moduli, with the associated warp factors dynamically generating different physical mass scales on four 3-branes. In order to address the hierarchy problem related to the Higgs mass, both moduli need to be stabilized around their desired values without any extreme fine tuning of parameters. We show that it is possible to stabilize them simultaneously due to the appearence of an effective 4D moduli potential, which is generated by a single bulk scalar field having non-zero VEVs frozen on the 3-branes. We also discuss how the entire mechanism can possibly be understood from a purely gravitational point of view, with higher curvature f(R) contributions in the bulk automatically providing a scalar degree of freedom that can serve as the stabilizing field in the Einstein frame.
