Abstract
The fission-neutron multiplicity $\overline{\ensuremath{\nu}}$ and the total prompt $\ensuremath{\gamma}$-ray energy have been studied for the resolved resonances in $^{239}\mathrm{Pu}$ between 10 and 170 eV. There was a weak correlation found between $\overline{\ensuremath{\nu}}$ and the spin of the resonances. There was a significant correlation between the total $\ensuremath{\gamma}$-ray energy and the spin of the resonance. These correlations can be explained by competition of the ($n,\ensuremath{\gamma}f$) reaction with the ($n,f$) reaction in the $J=1$ resonances which have a narrow fission width.NUCLEAR REACTIONS neutrons per fission and total prompt $\ensuremath{\gamma}$ energy from $^{239}\mathrm{Pu}$ resonance fission, ${E}_{n}=10\ensuremath{-}170$ eV. Correlation with ${\ensuremath{\Gamma}}_{f}$ due to $^{239}\mathrm{Pu}(n,\ensuremath{\gamma}f)$.
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