PHYSICAL REVIEW D
We present double-differential measurements of antineutrino charged-current quasielastic scattering in the MINERvA detector. This study improves on a previous single-differential measurement by using updated reconstruction algorithms and interaction models and provides a complete description of observed muon kinematics in the form of a double-differential cross section with respect to muon transverse and longitudinal momentum. We include in our signal definition zero-meson final states arising from multinucleon interactions and from resonant pion production followed by pion absorption in the primary nucleus. We find that model agreement is considerably improved by a model tuned to MINERvA inclusive neutrino scattering data that incorporates nuclear effects such as weak nuclear screening and two-particle, two-hole enhancements.
Patrick, C. E.; Aliaga Soplin, Leonidas; Bashyal, A.; Bellantoni, L.; Bercellie, A.; Betancourt, M.; Bodek, A.; Bravar, A.; Budd, H.; Caceres, G. F. R.; Carneiro, M. F.; Chavarria, E.; da Motta, H.; Dytman, S. A.; Diaz, G. A.; Felix, J.; Fields, L.; Fine, R.; Gago, A. M.; Galindo, R.; Kordosky, Michael A.; Nelson, Jeffrey K.; Norrick, Anne; Valencia-Rodriguez, Edgar; and Zhang, D., Measurement of the muon antineutrino double-differential cross section for quasielastic-like scattering on hydrocarbon at E-v similar to 3.5 GeV (2018). PHYSICAL REVIEW D, 97(5), 1-49.