Precise predictions for V+ jets dark matter backgrounds by Lindert, J, Pozzorini, S, Boughezal, R, Campbell, J, Denner, A, Dittmaier, S, Gehrmann-De Ridder, A, Gehrmann, T, Glover, N, Huss, A, Kallweit, S, Maierhöfer, P, Mangano, M, Morgan, T, Mück, A, Petriello, F, Salam, G, Schönherr, M, Williams, C