Superscaling analysis of inclusive electron scattering and its extension to charge-changing neutrino-nucleus cross sections beyond the relativistic Fermi gas approach

Journal Article · Wed Nov 15 00:00:00 EST 2006 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.74.054603· OSTI ID:20864037

Antonov, A N; Ivanov, M V; Gaidarov, M K ^[1]; Guerra, E Moya de ^[2]; Caballero, J A ^[3]; Barbaro, M B ^[4]; Udias, J M ^[5]; Sarriguren, P ^[6]

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1. Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Sofia 1784 (Bulgaria)
2. Instituto de Estructura de la Materia, CSIC, Serrano 123, E-28006 Madrid (Spain)
3. Departamento de Fisica Atomica, Molecular y Nuclear, Universidad de Sevilla, Apdo. 1065, E-41080 Sevilla (Spain)
4. Dipartimento di Fisica Teorica, Universita di Torino and INFN, Sezione di Torino, Via P. Giuria 1, I-10125 Torino (Italy)
5. Departamento de Fisica Atomica, Molecular y Nuclear, Facultad de Ciencias Fisicas, Universidad Complutense de Madrid, Madrid E-28040 (Spain)
6. Instituto de Estructura de la Materia, CSIC, Serrano 123, 28006 Madrid (Spain)

Superscaling analyses of inclusive electron scattering from nuclei are extended from the quasielastic processes to the delta excitation region. The calculations of (e,e{sup '}) cross sections for the target nucleus {sup 12}C at various incident electron energies are performed using scaling functions f({psi}{sup '}) obtained in approaches going beyond the mean-field approximation, such as the coherent density fluctuation model (CDFM) and the one based on the light-front dynamics method. The results are compared with those obtained using the relativistic Fermi gas (RFG) model and the extended RFG model (ERFG). Our method utilizes in an equivalent way both basic nuclear quantities, density and momentum distributions, showing their role for the scaling and superscaling phenomena. The approach is extended to consider scaling function for medium and heavy nuclei with Z{ne}N for which the proton and neutron densities are not similar. The asymmetry of the CDFM quasielastic scaling function is introduced, simulating in a phenomenological way the effects that violate the symmetry for {psi}{sup '}{>=}0, including the role of the final-state interaction. The superscaling properties of the electron scattering are used to predict charge-changing neutrino-nucleus cross sections at energies from 1 to 2 GeV. A comparison with the results of the ERFG model is made. The analyses make it possible to gain information about the nucleon correlation effects on both local density and nucleon momentum distributions.

• OSTI ID: 20864037
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 74, Issue 5; Other Information: DOI: 10.1103/PhysRevC.74.054603; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
APPROXIMATIONS
ASYMMETRY
CARBON 12
COMPARATIVE EVALUATIONS
CORRELATIONS
CROSS SECTIONS
DISTRIBUTION
ELECTRONS
EXCITATION
FERMI GAS MODEL
FINAL-STATE INTERACTIONS
FLUCTUATIONS
GEV RANGE
HEAVY NUCLEI
INELASTIC SCATTERING
MEAN-FIELD THEORY
NEUTRINOS
NEUTRON DENSITY
PROTONS
RELATIVISTIC RANGE