Hadronic transport approach to neutrino nucleus scattering: the Giessen BUU model and its validation

TL;DR

This paper introduces and validates the GiBUU hadronic transport model for neutrino-nucleus scattering, emphasizing the impulse approximation and final state interactions, supported by comparisons with experimental data.

Contribution

The paper presents a comprehensive validation of the GiBUU model for neutrino-nucleus interactions, incorporating impulse approximation and final state interactions, using diverse experimental data.

Findings

GiBUU accurately reproduces pion-nucleus scattering data.

The model effectively describes photon and electron scattering experiments.

Validation supports its use in neutrino physics applications.

Abstract

We present the GiBUU model for neutrino nucleus scattering: assuming impulse approximation, this reaction is treated as a two step process. In the initial state step, the neutrinos interact with bound nucleons. In the final state step, the outgoing particles of the initial reaction are propagated through the nucleus and undergo final state interactions. In this contribution, we focus on the validation of the initial and final state interaction treatment in GiBUU using experimental data for pion-nucleus, photon-nucleus and electron-nucleus scattering.