Testing of quasi-elastic neutrino charged-current and two-body meson exchange current models with the MiniBooNE neutrino data and analysis of these processes at energies available at the NOvA experiment

2018/12/23 by A. V. Butkevich, S. V. Luchuk
Physics and Astronomy · #hep-ph #nucl-th

paper · pdf · doi:10.1103/physrevd.99.093001

published as Phys. Rev. D 99, 093001 (2019) · 33 pages, 19 figures. arXiv admin note: text overlap with arXiv:1708.04052

arxiv created 2018/12/23 · arxiv updated 2019/05/08

Abstract

The charged-current quasi-elastic (CCQE) scattering of muon neutrinos on a carbon target is analyzed using the relativistic distorted-wave impulse approximation (RDWIA) taking into account the contribution of the two-particle and two-hole meson exchange current (2p-2h MEC) to the weak response functions. A fit the RDWIA+MEC model to the MiniBooNE neutrino data is performed and the best fit value of nucleon axial mass M_A=1.2 ± 0.06 GeV is obtained. We also extract the values of the axial form factor F_A(Q²) as a function of the squared momentum transfer Q² from the measured dσ/dQ² cross section. The flux-integrated CCQE-like differential cross sections for neutrino scattering at energies of the NOvA experiment are estimated within the RDWIA+MEC approach.

Citations

• Quasielastic neutrino charged-current scattering off C<mml:mprescripts/><mml:none/>12: Effects of the meson exchange currents and large nucleon axial mass