Mono-Higgs signature in a fermionic dark matter model

In light of the discovery of the Higgs boson we explore a mono-Higgs signature in association with dark matter pair production at the Large Hadron Collider (LHC) in a renormalizable model with a fermionic dark matter candidate. For two channels with gamma gamma+MET and b (b) over bar +MET in the final state we simulate the standard model (SM) backgrounds and signal events at root s = 14 TeV. We then estimate the LHC sensitivities for various benchmark points for two integrated luminosities L = 300 fb(-1) and L = 3 ab(-1). We constrain the Yukawa coupling of the dark matter-SM interaction, taking into account bounds from mono-Higgs signature, observed dark matter relic density, Higgs physics, perturbativity requirement and electroweak measurements. Concerning the mono-Higgs search, it turns out that the channel with the largest branching ratio, the b (b) over bar channel, provides better sensitivity. There are found regions in the parameter space of the model compatible with all the bounds mentioned above which can be reached in future LHC studies.