论文标题
重力介导的暗物质
Lightening Gravity-Mediated Dark Matter
论文作者
论文摘要
我们重新审视一个大型自旋2粒子的场景，作为在任意自旋和标准模型之间进行交流的介体。在有效理论中占据了自旋2粒子的一般耦合，我们通过各种通道和暗物质自分裂讨论了暗物质的热生产机制。对于WIMP和轻质的暗物质案例，我们从直接和间接检测，精度测量以及对撞机实验中施加了遗物密度条件和各种实验约束。我们表明，在允许和禁止的方案中将暗物质an灭入一对旋转2颗粒中很重要，从而为暗物质打开了一致的参数空间。 Spin-2介体的基准模型是在扭曲的额外维度的背景下与简化模型相比的。
We revisit the scenario of a massive spin-2 particle as the mediator for communicating between dark matter of arbitrary spin and the Standard Model. Taking the general couplings of the spin-2 particle in the effective theory, we discuss the thermal production mechanisms for dark matter with various channels and the dark matter self-scattering. For WIMP and light dark matter cases, we impose the relic density condition and various experimental constraints from direct and indirect detections, precision measurements as well as collider experiments. We show that it is important to include the annihilation of dark matter into a pair of spin-2 particles in both allowed and forbidden regimes, thus opening up the consistent parameter space for dark matter. The benchmark models of the spin-2 mediator are presented in the context of the warped extra dimension and compared to the simplified models.
