Abstract

Abstract We present a relation between the density and pressure of pure neutron matter derived from numerical calculations based on a truncated coupled cluster model using a simple bare nucleon-nucleon interaction in the Minnesota potential form. The obtained relationship exhibits well-known behaviour only at low densities ≲ 0.08 fm−3 and diverges from the supported by observations data equations of state at higher densities. Our results are compared with those derived from efective feld theory using realistic NN forces.

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