Bulk fields and supersymmetry in a slice of AdS
Bulk fields and supersymmetry in a slice of AdS
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DOI：
10.1016/s0550-3213(00)00392-8
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发表时间：
2000-03
期刊：
影响因子：
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通讯作者：
T. Gherghetta;A. Pomarol
中科院分区：
文献类型：
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作者：
T. Gherghetta;A. Pomarol
五维模型的主体是一片AdS，具有解决层次问题的优点。电弱标度是由标准模型场所在的膜上的感应度规的“翘曲”因子产生的。然而，没有必要将标准模型场限制在膜上，我们分析了使场实际存在于AdS切片中的可能性。具体来说，我们研究的费米子，规范玻色子和标量在这种几何形状和它们的影响，电弱物理的行为。这些场景可以通过翘曲因子来解释费米子质量等级。我们还考虑了体超对称的情况，并分析了质谱上的条件。最后，提出了一个模型，其中的翘曲因子产生一个小的（TeV）超光速突破规模，与规范的相互作用介导的标量部门的突破。
Five-dimensional models where the bulk is a slice of AdS have the virtue of solving the hierarchy problem. The electroweak scale is generated by a “warp” factor of the induced metric on the brane where the standard model fields live. However, it is not necessary to confine the standard model fields on the brane and we analyze the possibility of having the fields actually living in the slice of AdS. Specifically, we study the behaviour of fermions, gauge bosons and scalars in this geometry and their implications on electroweak physics. These scenarios may provide an explanation of the fermion mass hierarchy by warp factors. We also consider the case of supersymmetry in the bulk, and analyze the conditions on the mass spectrum. Finally, a model is proposed where the warp factor generates a small (TeV) supersymmetry-breaking scale, with the gauge interactions mediating the breaking to the scalar sector.