Fraction of particles ending in the scattered disk with a probability of escaping all catastrophic collisions P(0) lower than that indicated on the horizontal axis. This is an alternative representation of the results shown in Fig. 2. The different line styles refer to different exponents for the differential size distribution q, as labeled in the plot. The thick curves correspond to the value of Q^∗ given in Benz & Asphaug (1999) and the thin curves to a Q^∗ value four times lower, as in Leinhardt & Stewart (2009) with the velocity scaling provided in Stewart & Leinhardt (2009).