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arXiv 0912.2634hep-th
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关于非交换U ~*(1)规范模型及其重整化

On Non-Commutative U*(1) Gauge Models and Renormalizability

Daniel N. Blaschke, Arnold Rofner, Rene I. P. Sedmik, Michael Wohlgenannt

摘要:

基于我们最近关于非对易U*(1)规范理论[arxiv:0908.0467,arxiv:0908.1743]的(非)重整化性的发现,我们提出了一种新的模型的构造.通过引入一个软破断项,使得只有作用量的双线性部分被修改,规范扇区和辅助场之间不会发生相互作用。另外,要求后者形成BRST双重结构,这导致了具有IR阻尼行为的最小改变的非对易U*(1)规范模型。此外,新的破缺项被证明提供了必要的结构,以吸收不可避免的二次IR分歧出现在一个循环的水平,在这种理论。在本文中,我们计算费曼规则,对称性和真空极化的结果,以及规范玻色子传播子和三点函数的单圈重整化。

英文摘要:

Based on our recent findings regarding (non-)renormalizability of non-commutative U*(1) gauge theories [arxiv:0908.0467, arxiv:0908.1743] we present the construction of a new type of model. By introducing a soft breaking term in such a way that only the bilinear part of the action is modified, no interaction between the gauge sector and auxiliary fields occurs. Demanding in addition that the latter form BRST doublet structures, this leads to a minimally altered non-commutative U*(1) gauge model featuring an IR damping behavior. Moreover, the new breaking term is shown to provide the necessary structure in order to absorb the inevitable quadratic IR divergences appearing at one-loop level in theories of this kind. In the present paper we compute Feynman rules, symmetries and results for the vacuum polarization together with the one-loop renormalization of the gauge boson propagator and the three-point functions.

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。

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