Using electron scattering superscaling to predict charge-changing neutrino cross sections in nuclei

Journal Article · Sat Jan 01 00:00:00 EST 2005 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.71.015501· OSTI ID:20695906

Amaro, J E ^[1]; Barbaro, M B; Molinari, A ^[2]; Caballero, J A ^[3]; Donnelly, T W ^[4]; Sick, I ^[5]

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1. Departamento de Fisica Moderna, Universidad de Granada, E-18071 Granada (Spain)
2. Dipartimento di Fisica Teorica, Universita di Torino, and INFN, Sezione di Torino, Via P. Giuria 1, I-10125 Torino (Italy)
3. Departamento de Fisica Atomica, Molecular y Nuclear, Universidad de Sevilla, Apdo. 1065, E-41080 Sevilla (Spain)
4. Center for Theoretical Physics, Laboratory for Nuclear Science, and Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)
5. Departement fuer Physik und Astronomie, Universitaet Basel, CH-4056 Basel (Switzerland)

Superscaling analyses of few-GeV inclusive electron scattering from nuclei are extended to include not only quasielastic processes, but also the region where {delta} excitation dominates. With reasonable assumptions about the basic nuclear scaling function extracted from data and information from other studies of the relative roles played by correlation and meson-exchange-current effects, it is shown that the residual strength in the resonance region can be accounted for through an extended scaling analysis. One observes scaling upon assuming that the elementary cross section by which one divides the residual to obtain a new scaling function is dominated by the N{yields}{delta} transition and employing a new scaling variable suited to the resonance region. This yields a good representation of the electromagnetic response in both the quasielastic and {delta} regions. The scaling approach is then inverted and predictions are made for charge-changing neutrino reactions at energies of a few GeV, with focus placed on nuclei that are relevant to neutrino oscillation measurements. For this, a relativistic treatment of the required weak interaction vector and axial-vector currents for both quasielastic and {delta}-excitation processes is presented.

• OSTI ID: 20695906
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 71, Issue 1; Other Information: DOI: 10.1103/PhysRevC.71.015501; (c) 2005 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
AXIAL-VECTOR CURRENTS
BOSON-EXCHANGE MODELS
CORRELATIONS
CROSS SECTIONS
ELECTRON-NUCLEON INTERACTIONS
ELECTRONS
EXCITATION
GEV RANGE
NEUTRINO OSCILLATION
NEUTRINO REACTIONS
NEUTRINO-NUCLEON INTERACTIONS
NEUTRINOS
NUCLEAR FORCES
QUANTUM FIELD THEORY
RELATIVISTIC RANGE
RESONANCE
SCATTERING
WEAK INTERACTIONS