Dynamical pion propagation in the functional approach to the charge response

8 October 1990

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 65 (15) , 1845-1848
https://doi.org/10.1103/physrevlett.65.1845

Abstract

We calculate the charge response to an electromagnetic field for a homogeneous system of nucleons and pions in the functional framework. This requires dealing with the pion propagation in the medium within the random-phase-approximation scheme. A quenching of the response is obtained in line with the experimental findings. Remarkably, the quenching takes place mainly in the isoscalar channel.

Keywords

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