Angular distributions in Monte Carlo event generation of weak single-pion production

Understand

One of the substantial sources of systematic errors in neutrino oscillation experiments that utilize neutrinos from accelerator sources stems from a lack of precision in modeling single-pion production (SPP).

• Oscillation analyses rely on Monte Carlo event generators (MC), providing theoretical predictions of neutrino interactions on nuclear targets.
• Pions produced in these processes provide a significant fraction of oscillation signal and background on both elementary scattering and detector simulation levels.
• Thus, it is of critical importance to develop techniques that will allow us to accommodate state-of-the-art theoretical models describing SPP into MCs.