2019/04/30 by Ulrich Mosel · 1 citation
Physics and Astronomy · #Basis (linear algebra) #Event (particle physics) #Event generator #Generator (circuit theory) #Lepton #Mixing (physics) #Neutrino #Neutrino Physics Research #Neutrino oscillation #Nuclear physics research studies #Particle physics theoretical and experimental studies #hep-ex #hep-ph #nucl-ex #nucl-th
paper · pdf · doi:10.1088/1361-6471/ab3830
published as Journal of Physics G 2019 · Topical Review, accepted for publication in Journals of Physics G
openalex publication_date 2019/08/02 · openalex created_date 2019/08/13 · arxiv created 2019/08/30 · arxiv updated 2019/09/02 · openalex updated_date 2026/08/06
Abstract Neutrino event generators are an essential tool needed for the extraction of neutrino mixing parameters, the mass hierarchy and a CP violating phase from long-baseline experiments. In this article I first describe the theoretical basis and the approximations needed to get to any of the generators. I also discuss the strengths and limitations of theoretical models used to describe semi-inclusive neutrino-nucleus reactions. I then confront present day’s generators with this theoretical basis by detailed discussions of the various reaction processes. Finally, as examples, I then show for various experiments results of the generator GiBUU for lepton semi-inclusive cross sections as well as particle spectra. I also discuss features of these cross sections in terms of the various reaction components, with predictions for Deep Underground Neutrino Experiment. Finally, I argue for the need for a new neutrino generator that respects our present-day knowledge of both nuclear theory and nuclear reactions and is as much state-of-the-art as the experimental equipment. I outline some necessary requirements for such a new generator.