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arXiv 1011.0682hep-ph
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最小Higgs模型的单圈重整化

One Loop Renormalization of the Littlest Higgs Model

Benjamín Grinstein, Randall Kelley, Patipan Uttayarat

摘要:

在小希格斯模型中,集体对称性阻止了希格斯粒子在一个环上获得二次发散的质量。这种集体对称性被弱规范相互作用打破。在裸拉格朗日量中显示集体对称性的项,例如汤川耦合,一般被重整为不尊重集体对称性的项之和,除非可能在耦合相关的一个重整化点处,以便恢复对称性。我们在这里研究一个典型的例子,最小希格斯模型的单圈重整化。这个模型的重整化的一些特点是新颖的,不熟悉的形式类似的手征拉格朗日研究。

英文摘要:

In Little Higgs models a collective symmetry prevents the Higgs from acquiring a quadratically divergent mass at one loop. This collective symmetry is broken by weakly gauged interactions. Terms, like Yukawa couplings, that display collective symmetry in the bare Lagrangian are generically renormalized into a sum of terms that do not respect the collective symmetry except possibly at one renormalization point where the couplings are related so that the symmetry is restored. We study here the one loop renormalization of a prototypical example, the Littlest Higgs Model. Some features of the renormalization of this model are novel, unfamiliar form similar chiral Lagrangian studies.

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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