Asymmetry Dependence of the Nuclear Caloric Curve
arXiv:1208.4887 · doi:10.1016/j.physletb.2012.12.073
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-Z)/A. 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.
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Cited by in corpus (11)
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- Liquid-Gas phase transition in nuclei
- The equation of state and symmetry energy of low density nuclear matter
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