The role of the $Δ$(1232) on the longitudinal response in the inclusive electron scattering reaction

Details The role of the $Δ$(1232) on the longitudinal response in the inclusive electron scattering reaction The role of the $Δ$(1232) on the longitudinal response in the inclusive electron scattering reaction

2003-02-25

arxiv.org/abs/nucl-th/0302074v1

Nucl.Phys. A725 (2003) 149-170

Physics

Nuclear Physics

Nuclear Theory

27 pages, 5 figures

Scientific paper

10.1016/S0375-9474(03)01577-X

We have performed a many-body calculation of the longitudinal nuclear $(e,e')$ reaction employing a Second RPA (SRPA) formalism which contains the $\Delta$(1232). More explicitly, our scheme contains RPA correlations as well as Hartree-Fock and second order self-energies, where an accurate evaluation of exchange terms is achieved. Using this formalism we have evaluated the longitudinal response function for $^{40}Ca$. We give final results at momentum transfers ranging from 300 up to 500 MeV/c, obtaining a good agreement with data.

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