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The State Dependence Calculation of Three-body Cluster Energy for Nuclear Matter

H. R. Moshfegh·M. Modarres
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Abstract

It is shown that the method of lowest order contrained variational (LOCV) which is based on the cluster expansion theory is a reliable many-body technique to calculate the nuclear matter equation of states. In this respect the state-dependence correlation functions and effective interactions which have been produce by LOCV calculation with the Reid Soft Core and $Δ$-Reid interactions are used to estimate the size of higher order cluster terms such as the effect of three body cluster energy in nuclear matter. We find that the three-body cluster energy is less than 1 MeV beyond the nuclear matter saturation density and it has weaker density dependence than our previous calculation with the state-averaged coorrelation functions and effective interactions. Finally, we conclude that the LOCV method is good enough to calculate other propertiesn of quantal fluids.

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H. R. Moshfegh, M. Modarres. 1999-07-11. The State Dependence Calculation of Three-body Cluster Energy for Nuclear Matter. https://arxiv.org/abs/nucl-th/9907044

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