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arXiv 1502.00099hep-thmath-phmath.MP
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希格斯机制与重整化群流:它们相容吗?

Higgs mechanism and renormalization group flow: are they compatible?

Michael Duetsch

摘要:

通常,一个大质量矢量玻色子模型的拉格朗日量是由希格斯机制以几何方式导出的。我们研究这种几何结构是否保持下的重整化群(RG)流。在Epstein-Glaser重整化的框架下,我们发现,如果重整化质量标度的选择与最小减方案相对应,那么答案是否定的。这个结果是从$U(1)$ -Higgs模型的单圈阶导出的。另一方面,我们给出了一个模型无关的证明,物理一致性,这是一个弱形式的BRST-不变性的时间顺序的产品,是稳定的RG-流。

英文摘要:

Usually the Lagrangian of a model for massive vector bosons is derived in a geometric way by the Higgs mechanism. We investigate whether this geometric structure is maintained under the renormalization group (RG) flow. Using the framework of Epstein-Glaser renormalization, we find that the answer is 'no', if the renormalization mass scale(s) are chosen in a way corresponding to the minimal subtraction scheme. This result is derived for the $U(1)$-Higgs model to 1-loop order. On the other hand we give a model-independent proof that physical consistency, which is a weak form of BRST-invariance of the time-ordered products, is stable under the RG-flow.

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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