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Two methods of the total excitation energy (TXE) partition betweencomplementary fission fragments (FF) are compared: one based on the "classical"hypothesis of prompt neutron emission from fully accelerated FF with bothfragments having the same residual nuclear temperature distribution,the secondone on the systematic behavior of the experimental multiplicity ratio{\nu}H/({\nu}L+{\nu}H) as a function of the heavy fragment mass number AH,thecomplementary FF having different residual temperature distributions.Thesemethods were applied on six fissioning systems: 233,235U(nth,f), 239Pu(nth,f),237Np(n5.5MeV,f), 252Cf(SF), 248Cm(SF) and fragment excitation energies,leveldensity parameters,fragment and fragment pair temperatures werecompared.Limitations of the "classical" TXE partition method are shown.Residualtemperature ratios RT=TL/TH versus AH,local and global parameterizations ofRT(AH) for the neutron induced fissioning systems are obtained.Average valuesof quantities characterizing prompt neutron emission are discussed.A lineardecrease of <RT> with the mass number of the fissioning nucleus and a lineardecrease of the average C parameter with the fissility parameter isobtained.Point by Point (PbP) model calculations validate the RT(AH)parameterizations.The multi-parametric matrix {\nu}(A,TKE) as well as promptneutron and gamma-ray emission quantities as a function of fragment mass,totalaverage prompt neutron multiplicity and spectrum and prompt neutronmultiplicity distribution P({\nu}) were calculated.The global RT(AH)parameterization extends the use of the PbP model to predict prompt neutronemission quantities for fissioning systems without experimental data.Anexplanation of the less pronounced sawtooth shape of {\nu}(A) and the increaseof {\nu}(A) with incident neutron energy only for heavy fragments is given andexemplified by quantitative results of the PbP model.

Partition of the total excitation energy between complementary fragments