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Short range correlations are introduced using unitary correlation method in arelativistic approach to the equation of state of the infinite nuclear matterin the framework of the Hartree-Fock approximation. It is shown that thecorrelations give rise to an extra node in the ground-state wave-function inthe nucleons, contrary to what happens in non-relativistic calculations with ahard core. The effect of the correlations in the ground state properties of thenuclear matter and neutron matter is studied. The nucleon effective mass andequation of state (EOS) are very sensitive to short range correlations. Inparticular, if the pion contact term is neglected a softening of the EOS ispredicted. Correlations have also an important effect on the neutron matter EOSwhich presents no binding but only a very shallow minimum contrary to theWalecka model.Comment: 8pages, 4 figure

Short range correlations in relativistic nuclear matter models