Neutrino-Nucleon Cross-Section Model Tuning in GENIE v3

Understand

We summarise the results of a study performed within the GENIE global analysis framework, revisiting the GENIE bare-nucleon cross-section tuning and, in particular, the tuning of a) the inclusive cross-section, b) the cross-section of low-multiplicity inelastic channels (single-pion and double-pion production), and c) the relative contributions of resonance and non-resonance processes to these final states.

• The same analysis was performed with several different comprehensive cross-section model sets available in GENIE Generator v3.
• In this work we performed a careful investigation of the observed tensions between exclusive and inclusive data, and installed analysis improvements to handle systematics in historic data.
• All tuned model configurations discussed in this paper are available through public releases of the GENIE Generator.