Interfacing Electron and Neutrino Quasielastic Scattering Cross Sections with the Spectral Function in GENIE

• DOI: 10.48550/arxiv.2308.15524
• Publication Date: 2023-01-01
• Authors: M. Betancourt; S. Gardiner; Noemi Rocco; Noah Steinberg
• Keywords: Nuclear Theory (nucl-th); Nuclear Theory; FOS: Physical sciences; 7. Clean energy

Progress in neutrino-nucleus cross section models is being driven by the need for highly accurate predictions neutrino oscillation community. These sophisticated are developed within a microscopic description of nucleus with goal encompassing all reaction modes relevant accelerator program. The disconnect between these and event generators that will be used next generation experiments represents critical obstacle must overcome order to precisely measure parameters. To this end we have Fortran wrapper lepton-nucleus quasielastic (QE) scattering GENIE generator as proof principle, broader creating an efficient pipeline incorporating advanced theoretical generators. As demonstration interface, implemented Spectral Function model into GENIE, offering more complete nuclear ground state, well ability provide quantifiable uncertainties. We validate implementation compare its against data QE already available GENIE.