Simplified dark matter models with a spin-2 mediator at the LHC Sabine Kraml, Ursula Laa, Kentarou Mawatari and Kimiko Yamashita Eur. Phys. J. C, 77 5 (2017) 326 Published online: 18 May 2017 DOI: 10.1140/epjc/s10052-017-4871-0