Asymmetry dependence of the nuclear caloric curve Academic Article uri icon

abstract

  • A basic feature of the nuclear equation of state is not yet understood: the dependence of the nuclear caloric curve on the neutron-proton asymmetry. Predictions of theoretical models differ on the magnitude and even the sign of this dependence. In this work, the nuclear caloric curve is examined for fully reconstructed quasi-projectiles around mass A= 50. The caloric curve extracted with the momentum quadrupole fluctuation thermometer shows that the temperature varies linearly with quasi-projectile asymmetry N-ZA. An increase in asymmetry of 0.15 units corresponds to a decrease in temperature on the order of 1 MeV. These results also highlight the importance of a full quasi-projectile reconstruction in the study of thermodynamic properties of hot nuclei. © 2013 Elsevier B.V.

altmetric score

  • 0.5

author list (cited authors)

  • McIntosh, A. B., Bonasera, A., Cammarata, P., Hagel, K., Heilborn, L., Kohley, Z., ... Yennello, S. J.

citation count

  • 30

publication date

  • February 2013