Covariance generation for the prompt neutron multiplicity of 239Pu including the (n,γf) process Esther Leal-Cidoncha, Gilles Noguere, Olivier Bouland and Olivier Serot EPJ Web Conf., 239 (2020) 12002 Published online: 30 September 2020 DOI: 10.1051/epjconf/202023912002