Relativistic meson exchange and isobar currents in electron scattering: Noninteracting Fermi gas analysis

1 May 1994

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

Vol. 49 (5) , 2650-2670
https://doi.org/10.1103/physrevc.49.2650

Abstract

We study two-body currents in the noninteracting relativistic Fermi gas model. Special emphasis is put on the role of the Δ isobar. Due to a resonance behavior, relativistic two-body isobar currents are found to be important in comparison with experimental data. Real-pion production is studied within the same framework, and the importance and physical implications of the energy dependence of the Δ-isobar decay width are stressed.

Keywords

This publication has 31 references indexed in Scilit:

Two-body currents and the transverse response of nuclei at large momentum transfer
Physics Letters B, 1992
Relativistic meson-exchange currents in the dip region
Physics Letters B, 1991
Longitudinal and transverse response functions in ${}^{56}{Fe}$ (e,e’) at momentum transfer near 1 GeV/c
Physical Review Letters, 1991
Transverse Response Functions in Deep-Inelastic Electron Scattering for ${}^{40}{Ca}$ , ${}^{48}{Ca}$ , and ${}^{56}{Fe}$
Physical Review Letters, 1985
Deep-inelastic electron scattering from carbon
Nuclear Physics A, 1983
Electron-Induced Deuteron Disintegration at Threshold
Physical Review Letters, 1981
Mesonic processes in deep-inelastic electron scattering from nuclei
Annals of Physics, 1981
Electron scattering from atoms, nuclei and nucleons
Physics Reports, 1975
Chiral Lagrangian Model of Single-Pion Photoproduction
Physical Review B, 1969
Chiral Lagrangian Calculation of Pion-Nucleon Scattering Lengths
Physical Review B, 1968