Relativity Damps OPEP in Nuclear Matter

Manoj K. Banerjee

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arXiv · nucl-th/9806054

Relativity Damps OPEP in Nuclear Matter

Manoj K. Banerjee

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Abstract

Using a relativistic Dirac-Brueckner analysis the OPEP contribution to the ground state energy of nuclear matter is studied. In the study the pion is derivative-coupled. We find that the role of the tensor force in the saturation mechanism is substantially reduced compared to its dominant role in a usual nonrelativistic treatment. We show that the damping of derivative-coupled OPEP is actually due to the decrease of $M^*/M$ with increasing density. We point out that if derivative-coupled OPEP is the preferred form of nuclear effective lagrangian nonrelativistic treatment of nuclear matter is in trouble. Lacking the notion of $M^*$ it cannot replicate the damping. We suggest an examination of the feasibility of using pseudoscalar coupled $π$N interaction before reaching a final conclusion about nonrelativistic treatment of nuclear matter.

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Manoj K. Banerjee. 1998-06-18. Relativity Damps OPEP in Nuclear Matter. https://arxiv.org/abs/nucl-th/9806054

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