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arXiv 0901.2229hep-ph
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再论规范-希格斯统一中反常磁矩的不确定性

More on the Finiteness of Anomalous Magnetic Moment in the Gauge-Higgs Unification

Yuki Adachi, C. S. Lim, Nobuhito Maru

摘要:

本文讨论了在包含Z_2-奇质量费米子的S^1/Z_2轨道上紧化的规范-Higgs统一的SU(3)模型中费米子的反常磁矩。算符分析表明,反常磁矩应该是有限的和可预测的,即使高维规范理论是不可重整化的。我们的主要目的是澄清各种类型的费曼图中出现的紫外发散的抵消机制。发散的消除发生在非零卡鲁扎-克莱因模式中的希格斯机制中的“伙伴”之间,以形成大质量规范玻色子。也有人认为,取消可能归因于量子力学超对称性隐藏在规范-希格斯统一的情况。

英文摘要:

We discuss the anomalous magnetic moment of fermion in a realistic SU(3) model of gauge-Higgs unification compactified on an orbifold S^1/Z_2 including Z_2-odd bulk mass for fermions. An operator analysis implies that the anomalous magnetic moment should be finite and predictable, even though higher dimensional gauge theories are non-renormalizable. Our main purpose is to clarify the cancellation mechanism of the UV divergences appearing in various types of Feynman diagrams. The cancellation of divergence turns out to take place between the contributions of the "partners" in the Higgs-like mechanism present in the non-zero Kaluza-Klein modes to form massive gauge bosons. It is also argued that the cancellation may be attributed to the quantum mechanical SUSY hidden in the scenario of gauge-Higgs unification.

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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