Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2009-07-10
Phys.Rev.C80:035504,2009
Physics
Nuclear Physics
Nuclear Theory
RevTeX, 34 pages including 11 figures
Scientific paper
10.1103/PhysRevC.80.035504
The present study is focused on the superscaling behavior of electron-nucleus cross sections in the region lying above the quasielastic peak, especially the region dominated by electroexcitation of the Delta. Non-quasielastic cross sections are obtained from all available high-quality data for Carbon 12 by subtracting effective quasielastic cross sections based on the superscaling hypothesis. These residuals are then compared with results obtained within a scaling-based extension of the relativistic Fermi gas model, including an investigation of violations of scaling of the first kind in the region above the quasielastic peak. A way potentially to isolate effects related to meson-exchange currents by subtracting both impulsive quasielastic and impulsive inelastic contributions from the experimental cross sections is also presented.
Amaro J. E.
Barbaro Maria B.
Caballero Jose Antonio
Donnelly T. W.
Maieron Chiara
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