Nuclear matter symmetry energy at 0.03 /0 0.2 Academic Article uri icon


  • Measurements of the density dependence of the symmetry free energy in low-density clustered matter have been extended using the Neutron Ion Multidetector for Reaction Oriented Dynamics at Texas A&M University. Thermal coalescence models were employed to extract densities and temperatures T for evolving systems formed in collisions of 47A MeV 40Ar+112Sn,124Sn and 64Zn+112Sn, 124Sn. Densities of 0. 03/00.2 and temperatures in the range 5-10 MeV have been sampled. The symmetry free energy coefficients are found to be in good agreement with values calculated using a quantum statistical model. Values of the corresponding symmetry free energy coefficient are derived from the data using entropies derived from the model. 2012 American Physical Society.

published proceedings


author list (cited authors)

  • Wada, R., Hagel, K., Qin, L., Natowitz, J. B., Ma, Y. G., Roepke, G., ... Majka, Z.

citation count

  • 48

complete list of authors

  • Wada, R||Hagel, K||Qin, L||Natowitz, JB||Ma, YG||Roepke, G||Shlomo, S||Bonasera, A||Typel, S||Chen, Z||Huang, M||Wang, J||Zheng, H||Kowalski, S||Bottosso, C||Barbui, M||Rodrigues, MRD||Schmidt, K||Fabris, D||Lunardon, M||Moretto, S||Nebbia, G||Pesente, S||Rizzi, V||Viesti, G||Cinausero, M||Prete, G||Keutgen, T||El Masri, Y||Majka, Z

publication date

  • June 2012