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Impact of vacuum stability perturbativity and XENON1T on global fits of ... formula ... and ... formula ... scalar singlet dark matter

机译：真空稳定性微扰性和XENON1T对... ...和... ...标量单线态暗物质整体拟合的影响

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Scalar singlet dark matter is one of the simplest and most predictive realisations of the WIMP (weakly-interacting massive particle) idea. Although the model is constrained from all directions by the latest experimental data, it still has viable regions of parameter space. Another compelling aspect of scalar singlets is their ability to stabilise the electroweak vacuum. Indeed, models of scalar dark matter are not low-energy effective theories, but can be valid all the way to the Planck scale. Using the GAMBIT framework, we present the first global fit to include both the low-energy experimental constraints and the theoretical constraints from UV physics, considering models with a scalar singlet charged under either a Z2 or a Z3 symmetry. We show that if the model is to satisfy all experimental constraints, completely stabilise the electroweak vacuum up to high scales, and also remain perturbative to those scales, one is driven to a relatively small region of parameter space. This region has a Higgs-portal coupling slightly less than 1, a dark matter mass of 1–2 TeV and a spin-independent nuclear scattering cross-section around 10-45cm2.
机译：标量单重态暗物质是WIMP（弱相互作用块状粒子）概念最简单，最具预测性的实现之一。尽管该模型受到最新实验数据的全方位约束，但仍具有可行的参数空间区域。标量单重态的另一个引人注目的方面是其稳定电弱真空的能力。实际上，标量暗物质模型并不是低能量有效的理论，但在普朗克尺度上一直都是有效的。使用GAMBIT框架，我们考虑了具有标量单重态的模型在 Z 2 或 Z 3 对称。我们表明，如果模型要满足所有实验约束，将电弱真空完全稳定到高比例，并且还对这些比例保持微扰，则可以将其驱动到相对较小的参数空间区域。该区域的希格斯门耦合略小于1，暗物质质量为1-2 TeV，围绕 10 - 45 cm 2 。

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