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arXiv 2011.01946hep-ph
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多尺度模型中Higgs扇区的稳定性

Stability of the Higgs Sector in a Flavor-Inspired Multi-Scale Model

Lukas Allwicher, Gino Isidori, Anders Eller Thomsen

摘要:

我们分析了一个具有味非普适规范相互作用的三场点模型的希格斯扇区的稳定性,其非标准模型态的谱跨越三个数量级。这个模型的灵感来自于解构一个五维理论,其中世代指数与第五维中的位置是一对一的关系。它提供了一个很好的描述质量和混合的SM费米子的尺度层次。我们证明,在这种结构中,SM-样希格斯粒子的质量项不会得到与最高质量标度成比例的大的修正。该模型只遭受不可避免的“小层次问题”之间的电弱规模和最轻的NP状态,预计将在TeV规模。

英文摘要:

We analyze the stability of the Higgs sector of a three-site model with flavor-non-universal gauge interactions, whose spectrum of non-Standard-Model states spans three orders of magnitude. This model is inspired by deconstructing a five-dimensional theory where the generation index is in one-to-one relation to the position in the fifth dimension. It provides a good description of masses and mixing of the SM fermions in terms of scale hierarchies. We demonstrate that, within this construction, the mass term of the SM-like Higgs does not receive large corrections proportional to the highest mass scales. The model suffers only of the unavoidable "little hierarchy problem" between the electroweak scale and the lightest NP states, which are expected to be at the TeV scale.

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