Multiplicity fraction as a function of the primary masses grouped inside bins for different fragmentation scenarios. Each Monte Carlo simulation was carried out using 10⁴ random cores drawn from a top-heavy CMF with Γ = −0.95 (Pouteau et al. 2022), with ξ = −0.2, q = 2, and eight levels of fragmentation. Blue and black, and green and red dots respectively represent simulations using ϕ = 0.8, ϕ = 0.4, ${\varphi }_M^{\prime }=0.5$, ${\varphi }_M^{\prime }=-0.5$.