论文标题
绘制希格斯的自我耦合边界
Charting the Higgs self-coupling boundaries
论文作者
论文摘要
新物理学可以首先在希格斯自偶联测量中表现出来吗？换句话说，如果其他Higgs和Electroweak测量值与标准模型预测兼容，则HIGGS自耦合的偏差会有多大？使用混凝土模型支持的理论参数，我们得出了A限制的自我耦合与单轴耦合偏差的比率，该标准模型的紫外线完成中的参数未进行微调。从广义上讲，允许使用一环层次结构。因此，我们强调的是，在LHC和未来的山相探测未知参数空间的自我耦合测量值，即使在没有单个偶数耦合测量中出现的提示的情况下，也具有发现潜力。例如，如果在LHC程序末尾显示其他可观察到的偏差少于两个sigma偏差，则在讨论的模型中，HIGGS的自耦合偏差仍可能超过200％，而无需引入紫外线参数的微调。
Could new physics first manifest itself in Higgs self-coupling measurements? In other words, how large could deviations in the Higgs self-coupling be, if other Higgs and electroweak measurements are compatible with Standard Model predictions? Using theoretical arguments supported by concrete models we derive a bound on the ratio of self-coupling to single-Higgs coupling deviations in ultraviolet completions of the Standard Model where parameters are not fine-tuned. Broadly speaking, a one-loop hierarchy is allowed. We thus stress that self-coupling measurements at the LHC and future colliders probe uncharted parameter space, presenting discovery potential even in the absence of emerging hints in single-Higgs coupling measurements. For instance, if other observables show less than two-sigma deviations by the end of the LHC programme, the Higgs self-coupling deviations could still exceed 200% in the models discussed, without introducing fine-tuning of ultraviolet parameters.
