Calmet Xavier, Latosh Boris
1Department of Physics and Astronomy, University of Sussex, Brighton, BN1 9QH UK.
2PRISMA Cluster of Excellence and Mainz Institute for Theoretical Physics, Johannes Gutenberg University, 55099 Mainz, Germany.
Eur Phys J C Part Fields. 2018;78(6):520. doi: 10.1140/epjc/s10052-018-6005-8. Epub 2018 Jun 25.
We show that quantum gravity, whatever its ultra-violet completion might be, could account for dark matter. Indeed, besides the massless gravitational field recently observed in the form of gravitational waves, the spectrum of quantum gravity contains two massive fields respectively of spin 2 and spin 0. If these fields are long-lived, they could easily account for dark matter. In that case, dark matter would be very light and only gravitationally coupled to the standard model particles.
我们表明，无论量子引力的紫外完备形式如何，它都可能解释暗物质。确实，除了最近以引力波形式观测到的无质量引力场外，量子引力谱包含两个分别具有自旋2和自旋0的大质量场。如果这些场是长寿命的，它们很容易解释暗物质。在这种情况下，暗物质将非常轻，并且仅通过引力与标准模型粒子耦合。
