Consistent one-pion exchange currents in electron scattering from a relativistic Fermi gas

Details Consistent one-pion exchange currents in electron scattering from a relativistic Fermi gas Consistent one-pion exchange currents in electron scattering from a relativistic Fermi gas

2001-07-26

arxiv.org/abs/nucl-th/0107069v1

Physics

Nuclear Physics

Nuclear Theory

30 pages, 10 figures

Scientific paper

A set of fully relativistic one-pion-exchange electromagnetic operators is developed for use in one-particle emission reactions induced by electrons. To preserve the gauge invariance of the theory additional pionic correlation operators are required beyond the usual meson-exchange current operators. Of these, in the present work emphasis is placed on the self-energy current which is infinite and needs to be renormalized. The renormalized current is expanded to first order to obtain a genuine one-pion-exchange contribution to the inclusive responses.

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