88
S. Sharma et al.
Fig. 7.4 The maximal value of average density (< ρ avg >/ρ 0 ), maximum density (< ρ max >/ρ 0 ),
nucleon-nucleon collisions (< N coll > sum ), average temperature (< T avg >) and maximum temperature (< T max >) as a function of A tot at their respective peak energies for 124 Sn and 197 Au
target reactions
the nucleon-nucleon (nn) collisions are more in symmetric reactions as compared to
the asymmetric ones (due to overlapping region). This enhancement can be parameterized with power law proportional to A
τ
tot . However, in case of
197 Au target reactions
power dependence is more strong compared to
124 Sn reactions.
The another quantity associated with hot and dense nuclear matter is the temperature. As the nuclear matter in heavy-ion collisions is non-equilibrated, therefore,
the temperature is calculated using the local density approximation. The procedure
we followed to calculate temperature is described in detail in [34–36]. The maximal
value of average temperature (< T
avg
>) and maximum temperature (< T
max
>) as
a function of A tot is also plotted in Fig. 7.4. Since the temperature is related to the
excitation energy of the system. Thus, in case of symmetric reactions, the peak IMFs
production is achieved at low incident energy as a result temperature achieved is less.
On the contrary, in mass asymmetric reactions the peak IMFs production is achieved