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arXiv 2202.01228hep-phhep-ex
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盖根鲍尔双胞胎

Gegenbauer's Twin

Gauthier Durieux, Matthew McCullough, Ennio Salvioni

摘要:

在双希格斯模型中,微调的主要来源是取消获得标准模型类希格斯粒子所需的$v^2/f^2$阶,其中$v$和$f$分别是电弱和新物理尺度。最近提出的Gegenbauer Goldstone模型自然地实现了$v^2/f^2 \ll 1$,因此消除了这种微调的来源。通过将两者结合成“Gegenbauer的双胞胎”,我们得到了一个基于Higgs扇区自然度的模型,该模型与当前对撞机测量结果一致,无需微调参数。百分之几的单希格斯耦合偏差和一阶三线性自耦合偏差在自然参数空间中是不可约的。因此,值得注意的是,盖根鲍尔孪生子的指纹可能首先通过高亮度LHC的di-Higgs测量出现。

英文摘要:

In Twin Higgs models the dominant source of fine-tuning is the cancellation of order $v^2/f^2$ required to obtain a Standard Model-like Higgs, where $v$ and $f$ are the electroweak and new physics scales, respectively. Recently proposed Gegenbauer Goldstone models naturally realise $v^2/f^2 \ll 1$ and hence remove this source of fine-tuning. By combining the two into `Gegenbauer's Twin', we obtain a symmetry-based model for Higgs sector naturalness consistent with current collider measurements without fine-tuning of parameters. Single-Higgs coupling deviations of a few percent and trilinear self-coupling deviations of order one are irreducible in the natural parameter space. Thus, notably, the fingerprints of Gegenbauer's Twin could emerge first through di-Higgs measurements at the High-Luminosity LHC.

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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