2017/10/31 by R. González-Jiménez, K. Niewczas, N. Jachowicz
Mathematics · Physics and Astronomy · #Classical mechanics #Geometry #Impulse (physics) #Kinematics #Mathematics #MiniBooNE #Neutrino #Nuclear physics #Nuclear physics research studies #Particle physics theoretical and experimental studies #Physics #Pion #Plane (geometry) #Quantum Chromodynamics and Particle Interactions #nucl-th
paper · pdf · doi:10.1103/physrevd.97.013004
published as Phys. Rev. D 97, 013004 (2018) · 13 pages, 10 figures
arxiv created 2018/01/22 · openalex publication_date 2018/01/25 · arxiv updated 2018/01/31 · openalex created_date 2019/07/30 · openalex updated_date 2026/08/05
The hybrid model for electroweak single-pion production (SPP) off the nucleon, presented by Gonz'alez-Jim'enez et al. [Phys. Rev. D 95, 113007 (2017)], is extended here to the case of incoherent pion-production on the nucleus. Combining a low-energy model with a Regge approach, this model provides valid predictions in the entire energy region of interest for current and future accelerator-based neutrino-oscillation experiments. The relativistic mean-field model is used for the description of the bound nucleons while the outgoing hadrons are considered as plane waves. This approach, known as the relativistic plane-wave impulse approximation (RPWIA), is a first step towards the development of more sophisticated models; it is also a test of our current understanding of the elementary reaction. We focus on the charged-current \ensuremathν(\ensuremathν)-nucleus interaction at MiniBooNE and MINERvA kinematics. The effect on the cross sections of the final-state interactions, which affect the outgoing hadrons on their way out of the nucleus, is judged by comparing our results with those from the NuWro Monte Carlo event generator. We find that the hybrid-RPWIA predictions largely underestimate the MiniBooNE data. In the case of MINERvA, our results fall below the \ensuremathν-induced 1\ensuremathπ0 production data, while a better agreement is found for \ensuremathν-induced 1\ensuremathπ+ and \ensuremathν-induced 1\ensuremathπ0 production.