Evolution with time of the specific AM, l, of a gSb primary galaxy during the minor merger whose evolution is shown in Fig. 1. The specific AM of old stars (left panel), gas and new stars (middle panel) and dark matter (right panel) is shown, for five different radial zones in the galaxy, see the legend. R_d indicates the disk scale length. The specific AM is in units of 100 kpc km s^-1.