Higher-order QCD predictions for dark matter production at the LHC in simplified models with s-channel mediatorsMihailo Backović, Michael Krämer, Fabio Maltoni, Antony Martini, Kentarou Mawatari and Mathieu PellenEur. Phys. J. C, 75 10 (2015) 482DOI: https://doi.org/10.1140/epjc/s10052-015-3700-6