论文标题
带有非最小耦合的重力门户
Gravitational Portals with Non-Minimal Couplings
论文作者
论文摘要
对于三种类型的标量，我们考虑了非最小耦合对形式$ξ_ss^2 r $的曲率的影响：希格斯玻色子，加拉顿和标量暗物质候选。我们计算这些非最小耦合与重力产生的深色物质，并与最小的耦合相比，与类似的结果进行了比较。我们还计算了重新加热期间对辐射浴的贡献。主要效果是再加热过程中最高温度的潜在增强。获得了$ \ Mathcal {O}（10^{12}）$ GEV的模型独立限制。对于耦合，$ξ_s\ gtrsim \ mathcal {o}（1）$，这些主导于最小的重力相互作用。
We consider the effects of non-minimal couplings to curvature of the form $ξ_S S^2 R$, for three types of scalars: the Higgs boson, the inflaton, and a scalar dark matter candidate. We compute the abundance of dark matter produced by these non-minimal couplings to gravity and compare to similar results with minimal couplings. We also compute the contribution to the radiation bath during reheating. The main effect is a potential augmentation of the maximum temperature during reheating. A model independent limit of $\mathcal{O}(10^{12})$ GeV is obtained. For couplings $ξ_S \gtrsim \mathcal{O}(1)$, these dominate over minimal gravitational interactions.
