arXiv 1006.35702010-06hep-th

规范/引力对偶的电弱对称破缺

Electroweak Symmetry Breaking from Gauge/Gravity Duality

Lilia Anguelova

备注：: 33 pages; minor clarification, references added, journal version
发表信息：: Nucl.Phys.B843:429-454,2011
DOI：: 10.1016/j.nuclphysb.2010.10.007

摘要：

我们使用规范/重力对偶来研究一个行走的人工色模型。后者是动力学电弱对称性破缺的唯象有希望的框架。人工色模型的一个传统问题是需要解决强耦合下的规范理论。规范/引力对偶的最新发展为处理这个问题提供了一个强有力的工具。首先，我们重新考虑以前考虑全息模型的QCD类的人工色D膜。特别是，我们开发早期的数值计算的Peskin-Takeuchi S-参数的分析理解。然后，我们应用这种方法的调查模型的步行人工色，通过嵌入D 7-反D 7探针膜在最近发现的IIB型背景双步行行为。作为必要的一步，我们还表明，存在一个嵌入的技术味膜，实现手征对称性破缺。最后，我们表明，出现在S-参数的发散，可以通过使用全息重整化。

英文摘要：

We use the gauge/gravity duality to study a model of walking technicolor. The latter is a phenomenologically promising framework for dynamical electroweak symmetry breaking. A traditional problem for technicolor models has been the need to address gauge theories at strong coupling. Recent developments in gauge/gravity duality provide a powerful tool for handling this problem. First, we revisit previously considered holographic models of QCD-like technicolor from D-branes. In particular, we develop analytical understanding of earlier numerical computations of the Peskin-Takeuchi S-parameter. Then we apply this method to the investigation of a model of walking technicolor, obtained by embedding D7 - anti-D7 probe branes in a recently discovered type IIB background dual to walking behaviour. As a necessary step, we also show that there is an embedding of the techniflavor branes, that realizes chiral symmetry breaking. Finally, we show that the divergences that appear in the S-parameter can be removed by using holographic renormalization.

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。

摘要：

英文摘要：

相关论文