Speaker
Prof.
Maria Benedetta Barbaro
(University of Turin and INFN)
Description
We summarize our recent progress in the description of charged-current neutrino-nucleus interaction in the GeV region within the SuSAv2-MEC approach, a fully relativistic model based on the analysis of electron-nucleus scattering data and recently improved with the inclusion of Relativistic Mean Field theory effects.
In particular, we discuss the weak excitation of two-particle-two-hole (2p2h) states induced by meson exchange currents and illustrate the role of relativistic effects, quantify the size of the direct-exchange interferences, and the relative importance of the axial versus vector current.
The model is validated versus all available electron-carbon scattering data and its predictions are compared with neutrino scattering data from MiniBooNE, MINERvA, T2K and NOMAD.
The results of a recent study on the density dependence of the 2p2h response are also presented and discussed.
References:
Relativistic model of 2p-2h meson exchange currents in (anti)neutrino scattering
I. Ruiz Simo, J.E. Amaro, M.B. Barbaro, A. De Pace, J.A. Caballero, T.W. Donnelly,
J.Phys. G44 (2017) no.6, 065105.
The frozen nucleon approximation in two-particle two-hole response functions
I. Ruiz Simo, J.E. Amaro, M.B. Barbaro, J.A. Caballero, G.D. Megias, T.W. Donnelly,
Phys.Lett. B770 (2017) 193-199.
Density dependence of 2p-2h meson-exchange currents
J.E. Amaro, M.B. Barbaro, J.A. Caballero, A. De Pace, T.W. Donnelly, G.D. Megias, I. Ruiz Simo,
Phys. Rev. C (2017)
Charged-current neutrino-nucleus reactions within the superscaling meson-exchange current approach
G. D. Megias, J. E. Amaro, M. B. Barbaro, J. A. Caballero, T. W. Donnelly, I. Ruiz Simo,
Phys.Rev. D94 (2016) no.9, 093004.
Emission of neutron–proton and proton–proton pairs in neutrino scattering
I. Ruiz Simo, J.E. Amaro, M.B. Barbaro, A. De Pace, J.A. Caballero, G.D. Megias, T.W. Donnelly,
Phys.Lett. B762 (2016) 124-130.
Emission of neutron-proton and proton-proton pairs in electron scattering induced by meson-exchange currents
I. Ruiz Simo, J.E. Amaro, M.B. Barbaro, A. De Pace, J.A. Caballero, G.D. Megias, T.W. Donnelly,
Phys.Rev. C94 (2016) no.5, 054610.
Inclusive electron scattering within the SuSAv2 meson-exchange current approach
G.D. Megias, J.E. Amaro, M.B. Barbaro, J.A. Caballero, T.W. Donnelly,
Phys.Rev. D94 (2016) 013012.
Charged-current inclusive neutrino cross sections in the SuperScaling model including quasielastic, pion production and meson-exchange contributions
M.V. Ivanov, G.D. Megias, R. González-Jiménez, O. Moreno, M.B. Barbaro, J.A. Caballero, T.W. Donnelly,
J.Phys. G43 (2016) no.4, 045101.
Primary author
Prof.
Maria Benedetta Barbaro
(University of Turin and INFN)
