标题： 一个大的质量层次结构来自一个小型的额外维度 显示英文标题

标题： A Large Mass Hierarchy from a Small Extra Dimension

摘要： 我们提出一种新的高维机制来解决层次问题。 弱尺度是通过指数层次从大约普朗克尺度的大尺度生成的。 然而，这种指数层次不是来自规范相互作用，而是来自背景度规（这是AdS_5时空的一个切片）。 该机制依赖于仅存在一个额外维度。 我们用两个三膜构造了一个简单的显式例子，其中一个包含标准模型场。 此场景的实验后果是新颖且戏剧性的。 存在基本的自旋-2激发态，其质量在弱尺度量级，它们以弱尺度而非引力强度与标准模型粒子耦合。 这些模型的物理现象与大额外维场景显著不同；目前对具有非常大的额外维理论的约束都不适用。 显示英文摘要

摘要： We propose a new higher-dimensional mechanism for solving the Hierarchy Problem. The Weak scale is generated from a large scale of order the Planck scale through an exponential hierarchy. However, this exponential arises not from gauge interactions but from the background metric (which is a slice of AdS_5 spacetime). This mechanism relies on the existence of only a single additional dimension. We demonstrate a simple explicit example of this mechanism with two three-branes, one of which contains the Standard Model fields. The experimental consequences of this scenario are new and dramatic. There are fundamental spin-2 excitations with mass of weak scale order, which are coupled with weak scale as opposed to gravitational strength to the standard model particles. The phenomenology of these models is quite distinct from that of large extra dimension scenarios; none of the current constraints on theories with very large extra dimensions apply.