Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2012-04-14
Physics
Nuclear Physics
Nuclear Theory
30 pages 13 figures. arXiv admin note: text overlap with arXiv:0904.1472, arXiv:1105.1295
Scientific paper
The charged-current quasi-elastic scattering of muon neutrinos on calcium and argon targets is calculated for neutrino energy up to 2.8 GeV. The calculations are done within the framework of the relativistic distorted-wave impulse approximation, which was earlier successfully applied to describe electron-nucleus data. The model is first tested against experimental data for electron scattering off calcium and then it is applied to calculate (anti)neutrino cross sections on 40Ca and 40Ar. We show that reduced exclusive cross sections for neutrino and electron scattering are similar. A significant nuclear model dependence of both inclusive and total cross sections for energy about 1 GeV was found. From the comparison of the (anti)neutrino differential and total cross sections per (proton)neutron, calculated for the carbon, oxygen, and argon targets it is evident that the cross sections decrease slowly with the mass-number of the target due to nuclear effects.
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