Dynamical interpretation of chemical freeze-out in heavy ion collisions
  It is demonstrated that there exists a direct correlation between chemical freeze-out point and the softest point of the equation of state where the pressure divided by the energy density, $p(\epsilon)/\epsilon$, has a minimum. A dynamical model is given as an example where the passage of the softest point coincides with the condition for chemical freeze-out, namely an average energy per hadron $\approx$ 1 GeV. The sensitivity of the result to the equation of state used is discussed. 
V. D. Toneev (1,2), J. Cleymans (3), E. G. Nikonov (1,2), K.   Redlich(1,4), A. A. Shanenko(2). ((1)Gesellschaft fuer Schwer...