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Delta-isobar relativistic meson exchange currents in quasielastic electron scattering

J. E. Amaro·M. B. Barbaro·J. A. Caballero·T. W. Donnelly·A. Molinari
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Abstract

We study the role of the $Δ$-isobar current on the response functions for high energy inclusive quasielastic electron scattering from nuclei. We consider a general Lagrangian which is compatible with contact invariance and perform a fully relativistic calculation in first-order perturbation theory for one-particle emission. The dependence of the responses upon off-shell parametrizations is analyzed and found to be mild. A discussion of scaling behaviour and a comparison with various non-relativistic approaches are also presented.

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J. E. Amaro, M. B. Barbaro, J. A. Caballero, T. W. Donnelly, A. Molinari. 2003-03-24. Delta-isobar relativistic meson exchange currents in quasielastic electron scattering. https://doi.org/10.1016/s0375-9474(03)01269-7

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