论文标题
共形不变标量暗物质模型的真空稳定性
Vacuum stability of conformally invariant scalar dark matter models
论文作者
论文摘要
我们讨论了带有标量暗物质的全局o（n）对称性的标量暗物质多重物，以及electroweak singlet singlet标量介体中的标量暗物质多重物质，讨论了真空结构和真空稳定性。我们的形式不变的标量电势通过Coleman-Weinberg机制产生了电动对称性破裂，而新的标量SINGLET介质通过对标量暗物质以及标准模型粒子的辐射校正来获取其质量。考虑到当前的对撞机的边界，我们发现了标量电势稳定的参数空间区域，并且所有无质量的耦合都扰动到普朗克量表。通过满足真空稳定性条件的获得的参数集，我们介绍了满足遗物丰度测量的新物理参数的允许区域，并预测了新标量型乘积的弹性散射横截面，以直接检测到暗物质的直接检测到目标核。我们还讨论了新标量的对撞机签名和未来发现潜力。
We discuss vacuum structure and vacuum stability in classically scale-invariant renormalizable models with a scalar dark matter multiplet of global O(N) symmetry together with an electroweak singlet scalar mediator. Our conformally invariant scalar potential generates the electroweak symmetry breaking via the Coleman-Weinberg mechanism, and the new scalar singlet mediator acquires its mass through radiative corrections of the scalar dark matters as well as of the standard model particles. Taking into account the present collider bounds, we find the region of parameter space where the scalar potential is stable and all the massless couplings are perturbative up to the Planck scale. With the obtained parameter sets satisfying the vacuum stability condition, we present the allowed region of new physics parameters satisfying the recent measurement of relic abundance, and predict the elastic scattering cross section of the new scalar multiplet into target nuclei for a direct detection of the dark matter. We also discuss the collider signatures and future discovery potentials of the new scalars.
