2011/10/06 by J. Nieves, Nieves, J., Ignacio Ruiz-Simo +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Neutrino Physics Research #Nuclear physics research studies #Particle physics theoretical and experimental studies
paper · pdf · doi:10.48550/arxiv.1110.1200
openalex publication_date 2011/10/06 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We analyze the MiniBooNE CCQE dσ/dTμdcosθμ data using a theoretical model that has proved to be quite successful in the analysis of nuclear reactions with electron, photon and pion probes. We find that RPA and multinucleon knockout turn out to be essential for the description of the MiniBooNE data. We show these measurements are fully compatible with former determinations of nucleon axial mass MA, in contrast with several previous analyses, which have suggested an anomalously large value. We find, MA=1.08 ± 0.03 GeV. We also argue that the procedure, commonly used to reconstruct the neutrino energy for QE events from the muon angle and energy, could be unreliable for a wide region of the phase space, due to the large importance of multinucleon events.