Adapted from A. Denner et al. 
Where to hunt for the Higgs? The standard model predicts the probability (or “branching ratio” denoted BR) that a Higgs boson will decay into a particular set of final state particles. As an example, the probability that the Higgs boson will decay into two photons (magenta line) is much lower than the probability it will decay into a bottom and anti-bottom quark (black line), but the background for the two-photon final state is significantly less severe than for the bottom quark final state, so this is a better place to search for the Higgs boson. The branching ratios into other final states employed in the LHC Higgs searches are also shown; the thickness of the lines denote the theoretical uncertainty.