Abstract
Based on the difference between the Fermi distributionsat zero temperature and at the finite temperature, we introduce thetemperature-dependent three-body force (TBF) into the microscopicfinite-temperature Brueckner–Hartree–Fock theory (FTBHF). In terms ofthe meson-exchange current approach, i.e. the one boson exchange (OBE)approximation, the exchange of four important mesons π, ρ,σ and ω are considered. Using the FTBHF theoryincluding TBF, we describe the critical temperature of the liquid–gasphase transition for symmetric nuclear matter and discuss its changetrend with the increasing asymmetry parameter. Compared to the resultexcluding TBF, the value of the critical temperature turns out to besmaller.
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