Abstract
The equation of state of asymmetric nuclear matter atfinite temperature is studied in the framework of theBrueckner–Hartree–Fock approximation which is extended to includethree-body force correlations. Due to the additional repulsion producedby three-body force contribution, the proton or neutron potentialenergy and effective mass are correspondingly enhanced. The symmetryenergy gradually becomes more sensitive to the temperature with theincreasing density compared with the result that only includes the twohole-line contribution. The asymmetry parameter dependence of symmetryenergy is also indicated. It is shown that there is the same linearrelation between symmetry energy and β2 as the zerotemperature case with β being the asymmetry parameter.
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