231Pa and 233Pa Neutron‐Induced Fission Data Analysis

The 231Pa and 233Pa neutron‐induced fission cross‐section database is analyzed within the Hauser‐Feshbach approach. The consistency of neutron‐induced fission cross‐section data and data extracted from transfer reactions is investigated. The fission probabilities of Pa, fissioning in 231,233Pa(n,nf) reactions, are defined by fitting (3He,d) or (3He,t) transfer‐reaction data. The present estimate of the 233Pa(n,f) fission cross section above the emissive fission threshold is supported by smooth level‐density parameter systematics, validated in the case of the 231Pa(n,f) data description up to En =20 MeV.