Neutron-to-jet-power ratios for different parameter values. Black dots correspond to the parameters of the Cygnus X-1 model and blue dots to the rest of the models. We perform variations of one parameter in each case, with the remaining parameters fixed to the values of the Cygnus X-1 model. From left to right, the variable parameter is: injection index p, acceleration efficiency η, the bulk Lorentz factor of the jet Γ, and its luminosity L_jet.