Laboratory tests of low density astrophysical nuclear equations of state. Academic Article uri icon

abstract

  • Clustering in low density nuclear matter has been investigated using the NIMROD multidetector at Texas A&M University. Thermal coalescence modes were employed to extract densities, , and temperatures, T, for evolving systems formed in collisions of 47A MeV (40)Ar+(112)Sn, (124)Sn and (64)Zn+(112)Sn, (124)Sn. The yields of d, t, (3)He, and (4)He have been determined at =0.002 to 0.03 nucleons/fm(3) and T=5 to 11 MeV. The experimentally derived equilibrium constants for particle production are compared with those predicted by a number of astrophysical equations of state. The data provide important new constraints on the model calculations.

published proceedings

  • Phys Rev Lett

author list (cited authors)

  • Qin, L., Hagel, K., Wada, R., Natowitz, J. B., Shlomo, S., Bonasera, A., ... Ma, Y. G.

citation count

  • 65

complete list of authors

  • Qin, L||Hagel, K||Wada, R||Natowitz, JB||Shlomo, S||Bonasera, A||Röpke, G||Typel, S||Chen, Z||Huang, M||Wang, J||Zheng, H||Kowalski, S||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||Ma, YG

publication date

  • April 2012