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arXiv 1902.08090hep-phhep-thmath-phmath.MP
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规范耦合的Clifford谱action和重整化群分析

Clifford-based spectral action and renormalization group analysis of the gauge couplings

Ufuk Aydemir

摘要:

非对易几何中的谱作用量原理通过在几何环境中调和标准模型和广义相对论(以及其他几个引力项)的作用量,导出了它们的作用量,从而为它们的共同起源提供了解释。然而,在最小形式主义的要求之一,统一的规范耦合常数,没有得到满足,因为基本的建设没有引入任何新的,可以改变重整化群(RG)运行的标准模型。另一方面,最近有人认为,将Clifford代数的结构纳入谱三元组的有限部分,编码非交换空间的完整信息的主要对象,在基本框架中产生五个额外的标量场。我们调查这些标量是否可以帮助实现统一。我们在一个循环的水平上进行RG分析,允许这些标量的可能的质量值从电弱尺度浮动到假定的统一尺度。我们表明,在总共20种质量等级结构中,甚至不存在一种可以导致统一的情况。因此,我们确认,光谱行动形式主义需要一个模型建设计划超出(修改)的最小框架。

英文摘要:

The Spectral Action Principle in noncommutative geometry derives the actions of the Standard Model and General Relativity (along with several other gravitational terms) by reconciling them in a geometric setting, and hence offers an explanation for their common origin. However, one of the requirements in the minimal formalism, unification of the gauge coupling constants, is not satisfied, since the basic construction does not introduce anything new that can change the renormalization group (RG) running of the Standard Model. On the other hand, it has been recently argued that incorporating structure of the Clifford algebra into the finite part of the spectral triple, the main object that encodes the complete information of a noncommutative space, gives rise to five additional scalar fields in the basic framework. We investigate whether these scalars can help to achieve unification. We perform a RG analysis at the one-loop level, allowing possible mass values of these scalars to float from the electroweak scale to the putative unification scale. We show that out of twenty configurations of mass hierarchy in total, there does not exist even a single case that can lead to unification. In consequence, we confirm that the spectral action formalism requires a model-construction scheme beyond the (modified) minimal framework.

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