6 On the Fragment Production and Phase Transition Using QMD + SACA Model
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method uses coordinate+moemntum space correlations among nucleons on local
level and SACA uses the same information on global level. It is interesting to compare the correlations among the fragments within the events and correlations among
fragments on event-by-event basis.
6.3.2 Correlations Among Fragments Within Events
To understand the physics of the MSTP and SACA methods, we look for the radii of
the fragments in the coordinate (r) and momentum space (p) from the center-of-mass
of the system as a function of their charge, and the relative difference among their
Fig. 6.4 (Top four panels) The radii of the fragments from the center-of-mass of the system in
coordinate space (r-fm) and momentum space (p-MeV/c) as a function of the fragment charges
and (bottom four panels) relative radii among fragments in coordinate (r i j ) and momentum space
( p i j ) as a function of the product of their charges for the reactions of 40 Ca+ 40 Ca (b = 3 fm) at an
incident energy of 35 MeV/nucleon. The results of fragments with the MST and SACA methods
are displayed in left and right panels, respectively