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Final-state interactions and superscaling in the semi-relativistic approach to quasielastic electron and neutrino scattering

J. E. Amaro, M. B. Barbaro, J. A. Caballero, T. W. Donnelly, J. M. Udias

nucl-tharXiv:nucl-th/0612056

Abstract

The semi-relativistic approach to electron and neutrino quasielastic scattering from nuclei is extended to include final-state interactions. Starting with the usual non-relativistic continuum shell model, the problem is relativized by using the semi-relativistic expansion of the current in powers of the initial nucleon momentum and relativistic kinematics. Two different approaches are considered for the final-state interactions: the Smith-Wambach 2p-2h damping model and the Dirac-equation-based potential extracted from a relativistic mean-field plus the Darwin factor. Using the latter the scaling properties of (e,e') and (νμ,μ-) cross sections for intermediate momentum transfers are investigated.

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