论文标题
连形黑暗部门的重力产生
Gravitational Production of a Conformal Dark Sector
论文作者
论文摘要
与标准模型纯粹重力耦合的黑暗扇区不可避免地由Graviton Exchange从SM等离子体中填充，并且自然提供了DM候选物。我们研究了相对论方案中的生产，其中黑暗部门大致规模不变，提供了一般的分析公式，这些公式仅取决于黑暗部门的中心电荷。然后，我们评估可能导致多种现象的相互作用的相关性，包括热量，非扰动质量差距，平衡相位过渡和无性含量。作为一个说明性的例子，我们考虑了此光线中的深色粘合球场景，并且由于抑制了引力产生，它表明它是可行的DM候选者。我们继续将这些结果扩展到强烈耦合的CFT及其在大N处的全息偶，并将其作为DM DILATON作为DM候选者。
Dark sectors with purely gravitational couplings to the Standard Model are unavoidably populated from the SM plasma by graviton exchange, and naturally provide DM candidates. We examine the production in the relativistic regime where the dark sector is approximately scale invariant, providing general analytical formulas that depend solely on the central charge of the dark sector. We then assess the relevance of interactions that can lead to a variety of phenomena including thermalisation, nonperturbative mass gaps, out-of-equilibrium phase transitions and cannibalism in the dark sector. As an illustrative example we consider the dark glueball scenario in this light and show it to be a viable DM candidate due to the suppression of gravitational production. We go on to extend these results to strongly coupled CFTs and their holographic duals at large-N with the dark dilaton as the DM candidate.
