Data-based two-body current contribution to the neutrino-nucleus cross section
Abstract
A phenomenological model of two-body current (2p2h) contribution to neutrino cross section is introduced. Predictions of the Valencia model for 2p2h [J. Nieves et al., Phys. Rev. C 83, 045501 (2011), 10.1103/PhysRevC.83.045501] are modified using recent CC 0 π measurements from T2K and MINERvA experiments. Our results suggest a significant increase of the 2p2h cross section at neutrino energies bigger than 1 GeV and also a redistribution of 2p2h events as function of energy and momentum transfer. This may have a big impact on neutrino energy reconstruction in neutrino oscillation parameters.
- Publication:
-
Physical Review C
- Pub Date:
- July 2020
- DOI:
- 10.1103/PhysRevC.102.015502
- arXiv:
- arXiv:2003.00088
- Bibcode:
- 2020PhRvC.102a5502B
- Keywords:
-
- High Energy Physics - Experiment;
- High Energy Physics - Phenomenology
- E-Print:
- 10 pages, 5 figures