https://doi.org/10.1051/epjconf/202532400034
Inclusive neutrino and antineutrino scattering within the coherent density fluctuation model
1 Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, 1784 Sofia, Bulgaria
2 Department of Physics, Faculty of Mathematics and Natural Sciences, South-West University “Neofit Rilski”, Blagoevgrad, Bulgaria
* e-mail: martin@inrne.bas.bg
** e-mail: antonovshumen@gmail.com
Published online: 11 April 2025
The experimental data from quasielastic neutrino and antineutrino scattering on 12C are analyzed in terms of a new scaling variable ψ* suggested by the interacting relativistic Fermi gas model with scalar and vector interactions, which is known to generate a relativistic effective mass for the interacting nucleons. We construct a new scaling function fQE(ψ*) for the inclusive lepton scattering from nuclei within the coherent density fluctuation model (CDFM). The latter is a natural extension of the relativistic Fermi gas (RFG) model to finite nuclei. In this work, on the basis of the scaling function obtained within CDFM with a relativistic effective mass m*N from 0.6mN to 1.0mN, thus demonstrating its role in more details, we calculate and compare the theoretical predictions with a large set of experimental data for inclusive (anti)neutrino cross sections. The model also includes the contribution of weak two-body currents in the two-particle two-hole sector, evaluated within a fully RFG. Good agreement with experimental data is found over the whole range (anti)neutrino energies.
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
