Journal
PHYSICAL REVIEW D
Volume 95, Issue 7, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.95.076009
Keywords
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Funding
- Spanish DGI [FIS2014-59386-P]
- Junta de Andalucia [FQM225]
- Ministerio de Economia y Competitividad (Juan de la Cierva-Incorporacion grant)
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We provide a parametrization of a new phenomenological scaling function obtained from a chi-square fit to a selected set of de (e,e') cross section data expanding a band centered around the quasielastic peak. We start from a reanalysis of quasielastic electron scattering from nuclear matter within the relativistic mean field model. The cross section depends on the relativistic effective mass of the nucleon, m(N)(*), and it scales with respect to a new scaling variable, psi(*). This suggests a new superscaling approach with effective mass for predicting quasielastic cross sections within an uncertainty band. The model reproduces previously established results on the enhancement of the transverse response function as compared to the traditional relativistic Fermi gas.
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