Impact Parameter Dependence of Ratio in Probing the Nuclear Symmetry Energy Using Heavy-Ion Collisions

Figure 5

The impact parameter dependence of ratio formed by pions with kinematic energy lower than 250 MeV, larger than 250 MeV, and without any kinematic energy cut from Pb + Pb collisions at the beam energy of 400 MeV/nucleon and the kinematic energy distribution of pion number percentage from Pb + Pb collisions with symmetry energy parameter at two impact parameters of 1 fm and 11 fm and the beam energy of 400 MeV/nucleon.

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