Stable Asymptotically Free Extensions (SAFEs) of the Standard Model
Stable Asymptotically Free Extensions (SAFEs) of the Standard Model
复制标题
标准模型的稳定渐近自由扩展 (SAFE)
DOI：
--
复制
发表时间：
2014
期刊：
影响因子：
--
通讯作者：
Chen Zhang
中科院分区：
文献类型：
--
作者：
B. Holdom;Jing Ren;Chen Zhang
一个bstract我们考虑标准模型的可能的扩展，不仅是完全渐近自由的，但这样的UV不动点是完全UV吸引。所有耦合流在UV中朝向一组固定比率。受低标度统一的启发，探索了具有各种表示的基本标量的半简单规范群。最简单的模型是Pati-Salam模型。希格斯玻色子是真正基本的，但在统一尺度下，可能需要从强相互作用中产生动力学对称性破缺。一个从大统一理论简化而来的层次问题仍然需要解决。
A bstractWe consider possible extensions of the standard model that are not only completely asymptotically free, but are such that the UV fixed point is completely UV attractive. All couplings flow towards a set of fixed ratios in the UV. Motivated by low scale unification, semi-simple gauge groups with elementary scalars in various representations are explored. The simplest model is a version of the Pati-Salam model. The Higgs boson is truly elementary but dynamical symmetry breaking from strong interactions may be needed at the unification scale. A hierarchy problem, much reduced from grand unified theories, is still in need of a solution.