Dilute Nuclear Matter in Chiral Perturbation Theory

Details Dilute Nuclear Matter in Chiral Perturbation Theory Dilute Nuclear Matter in Chiral Perturbation Theory

2003-03-09

arxiv.org/abs/nucl-th/0303019v2

Phys.Rev. C69 (2004) 035211

Physics

Nuclear Physics

Nuclear Theory

Manuscript rewritten, especially conclusions about mass shifts; contact terms cannot be neglected. Computation unchanged

Scientific paper

10.1103/PhysRevC.69.035211

We use chiral perturbation theory to compute the effective nucleon propagator in an expansion about low density in the chiral limit. We neglect four-nucleon interactions and focus on pion exchange. Evaluating the nucleon self-energy on its mass shell to leading order, we show that the effective nucleon mass increases by a small amount. We discuss the relevance of our results to the structure of compact stars.

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