Interference between meson exchange and one-body currents in quasielastic electron scattering
Phys. Rev. C 112, 024603 – Published 5 August, 2025
DOI: https://doi.org/10.1103/q1nk-7ncq
Abstract
In this work, we present a detailed analysis of the interference between meson exchange currents (MEC) and one-body currents in quasielastic electron scattering, with a focus on the sign of this interference in the transverse response for one-particle emission. We prove that the interference of both the Delta and pion-in-flight currents with the one-body current is negative, leading to a partial cancellation with the seagull current. This is mathematically demonstrated within the framework of the Fermi gas model. By comparing these interferences across various independent particle models, both relativistic and nonrelativistic, our results indicate that all studied models display the same behavior.
