Caloric curve in Au + Au collisions

Details Caloric curve in Au + Au collisions Caloric curve in Au + Au collisions

1997-12-02

arxiv.org/abs/nucl-th/9712010v1

Physics

Nuclear Physics

Nuclear Theory

Revtex, 10 pages, 4 postscipt figures, To appear in Phys. Rev. C (Rapid Communications)

Scientific paper

10.1103/PhysRevC.57.R35

Realistic caloric curves are obtained for $^{197}Au + ^{197}Au$ reaction with incident energy ranging from 35 to 130 MeV/nucleon in the dynamic statistical multifragmentation model. It is shown that for excitation energy 3 to 8 MeV/nucleon, the temperature remains constant in the range 5 to 6 MeV, which is close to experiment. The mechanism of energy deposition through the tripartition of colliding system envisaged in this model together with inter-fragment nuclear interaction are found to play important role. A possible signature of liquid-gas phase transition is seen in the specific heat distribution calculated from these caloric curves, and the critical temperature is found to be $\sim$ 6 to 6.5 MeV.

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