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Effect of Cluster Formation on Isospin Asymmetry in the Liquid-Gas Phase Transition Region

L. Shi·P. Danielewicz
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Abstract

Nuclear matter within the liquid-gas phase transition region is investigated in a mean-field two-component Fermi-gas model. Following largely analytic considerations, it is shown that: (1) Due to density dependence of asymmetry energy, some of the neutron excess from the high-density phase could be expelled into the low-density region. (2) Formation of clusters in the gas phase tends to counteract this trend, making the gas phase more liquid-like and reducing the asymmetry in the gas phase. Flow of asymmetry between the spectator and midrapidity region in reactions is discussed and a possible inversion of the flow direction is indicated.

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L. Shi, P. Danielewicz. 2000-05-02. Effect of Cluster Formation on Isospin Asymmetry in the Liquid-Gas Phase Transition Region. https://doi.org/10.1209/epl%2Fi2000-00116-1

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