In-medium modification of the isovector pion-nucleon amplitude

Details In-medium modification of the isovector pion-nucleon amplitude In-medium modification of the isovector pion-nucleon amplitude

2002-11-12

arxiv.org/abs/nucl-th/0211035v1

Physics

Nuclear Physics

Nuclear Theory

7 pages

Scientific paper

10.1016/S0370-2693(03)00596-3

We study the in-medium modification of the isovector pi N amplitude using a
non-linear representation of the sigma model but keeping the scalar degree of
freedom. We check that our result does not depend on the representation. We
discuss the connection with other approaches based on chiral perturbation
theory.

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