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

abstract

  • 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

  • PHYSICAL REVIEW C

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