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arXiv 1802.02168hep-ph
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对撞机和引力波观测站的电弱相变信号

Signals of the electroweak phase transition at colliders and gravitational wave observatories

Mikael Chala, Claudius Krause, Germano Nardini

摘要:

如果电弱相变(EWPT)是由于更高的维度运营商的强第一级,新的物理产生它们的规模是在TeV规模或以下。在这种情况下,有效场论(EFT)忽略维度高于6的算子可能会忽略与EWPT分析相关的项。在这篇文章中,我们研究了EFT中的EWPT到八维。我们估计达到未来的引力波天文台LISA探测的区域中,EWPT是强烈的一阶,并比较它与希格斯测量的能力,通过双希格斯生产在当前和未来的对撞机。我们还将不同的UV模型与前面提到的八维EFT相匹配,并证明,从自上而下的角度来看,双希格斯粒子的产生并不是探索这些场景的最佳信号。

英文摘要:

If the electroweak phase transition (EWPT) is of strongly first order due to higher dimensional operators, the scale of new physics generating them is at the TeV scale or below. In this case the effective-field theory (EFT) neglecting operators of dimension higher than six may overlook terms that are relevant for the EWPT analysis. In this article we study the EWPT in the EFT to dimension eight. We estimate the reach of the future gravitational wave observatory LISA for probing the region in which the EWPT is strongly first order and compare it with the capabilities of the Higgs measurements via double-Higgs production at current and future colliders. We also match different UV models to the previously mentioned dimension-eight EFT and demonstrate that, from the top-down point of view, the double-Higgs production is not the best signal to explore these scenarios.

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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