限制标准模型的实单态扩展：对真空稳定性的影响
Constraining the real singlet extension of the Standard Model: implications for vacuum stability
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中文总结 AI 辅助
研究标准模型实单态扩展，通过添加实单态标量场，探讨其对弱电相变及希格斯真空稳定性的影响，综合理论与实验限制，为相关研究提供依据，尤其关注其对真空稳定性的意义。
中文摘要 AI 辅助
标准模型最简单的扩展之一是添加一个具有深远现象学后果的实单态标量场。该单态可催化强一阶弱电相变，这对成功的弱电重子生成是必要的。此外，当前对亚稳希格斯真空的预测可向绝对稳定性提升。虽然当前数据主要限制标量混合角，但未来希格斯自耦合测量和对额外标量态的直接搜索将探测更大的可行参数空间部分。我们报告了对实单态扩展的理论和实验限制的综合研究，特别强调其对真空稳定性的影响。
英文摘要
Amongst the simplest extensions of the Standard Model is the addition of a real singlet scalar field with profound phenomenological consequences. The singlet can catalyze a strong first-order electroweak phase transition, necessary for successful electroweak baryogenesis. Furthermore, the current prediction of a metastable Higgs vacuum can be lifted towards absolute stability. While current data mainly constrain the scalar mixing angle, future measurements of the Higgs self-coupling and direct searches for additional scalar states will probe much larger parts of the viable parameter space. We report on a combined study of theoretical and experimental constraints on the real singlet extension, highlighting here in particular its implications for vacuum stability.
