Impact of physical model error on state estimation for neutronics applications Yonah Conjungo Taumhas, David Labeurthre, Francois Madiot, Olga Mula and Tommaso Taddei ESAIM: ProcS, 73 (2023) 158-172 Published online: 30 August 2023 DOI: 10.1051/proc/202373158