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Quark-meson coupling model and heavy-ion collision

Dae Ik Kim, Chang-Hwan Lee, Kyungil Kim, Youngman Kim, Sangyong Jeon, Kazuo Tsushima

Abstract

We implement the quark-meson coupling model in Daejeon Boltzmann-Uehling-Uhlenbeck (DJBUU) transport model and perform Au+Au collision simulations at intermediate energies. Results are compared with simulations using a conventional quantum hadrodynamics model. Differences in the maximum density reached during the collisions are interpreted in terms of nuclear matter properties predicted by each model.

Quark-meson coupling model and heavy-ion collision

Abstract

We implement the quark-meson coupling model in Daejeon Boltzmann-Uehling-Uhlenbeck (DJBUU) transport model and perform Au+Au collision simulations at intermediate energies. Results are compared with simulations using a conventional quantum hadrodynamics model. Differences in the maximum density reached during the collisions are interpreted in terms of nuclear matter properties predicted by each model.

Paper Structure

This paper contains 4 sections, 8 equations, 4 figures, 1 table.

Table of Contents

  1. Nuclear matter
  2. Heavy-ion collision
  3. Summary
  4. Acknowledgments

Figures (4)

  • Figure 1: Pressure for symmetric nuclear matter, function of the baryon density divided by saturation density. Shaded region shows constraint from heavy-ion collisions Danielewicz2002.
  • Figure 2: Pressure for pure neutron matter, function of the baryon density divided by saturation density. Shaded region shows constraint from heavy-ion collisions Danielewicz2002.
  • Figure 3: The effective nucleon mass, function of the baryon density.
  • Figure 4: Time evolution of the central baryon density. The red solid line, blue dash-line and green dashed-dot line correspond to QMC, Liu$\rho$ and NL3, respectively.