Parameter study of the bucket densities θ_v, θ_m, θ_M in Ormel’s model. The two panels show the average probability of event acceptance p and the per-event runtime cost, respectively, as functions of the rms velocity bucket density θ_v and the mass bucket densities θ_m = θ_M. The simulation uses the setup described in Sect. 6.3.1 with boosting, as in Fig. 15, for an initial number of n₀ = 4096 representative particles.