Neutron resonances in ${}_{}{}^{100}{}_{}{}^{}\mathrm{Mo}$ and valence neutron capture

Neutron resonance interactions with ${}_{}{}^{100}{}_{}{}^{}\mathrm{Mo}$ were studied at a time-of-flight facility. The transmission of two oxide samples (97.4% ${}_{}{}^{100}{}_{}{}^{}\mathrm{Mo}$) was measured at a 78.20 m flight path and the neutron capture cross section was measured at 40.12 m. Resonance analyses yielded parameters of 124 resonances. Capture $\gamma$-ray spectra from 11 resolved resonances were measured with a Ge(Li) detector at a 10.45 m flight path. In contrast to neighboring nuclei, partial radiation widths of strong $p$-wave resonances are not in agreement with valence model predictions.

NUCLEAR REACTIONS ${}_{}{}^{100}{}_{}{}^{}\mathrm{Mo}$($n$), $E=0.1-26\mathrm{}$ keV, measured total $\sigma \mathrm{}\left(E\right)\mathrm{}$; ${}_{}{}^{100}{}_{}{}^{}\mathrm{Mo}$($n$,$\gamma$), $E=0.1-26\mathrm{}$ keV, measured ${\sigma }_{n\gamma }$; ${}_{}{}^{100}{}_{}{}^{}\mathrm{Mo}$($n$,$\gamma$), $E=0.1-8.0\mathrm{}$ keV, measured $E_{\gamma }$, $I_{\gamma }$. ${}_{}{}^{101}{}_{}{}^{}\mathrm{Mo}$ deduced resonances, resonance parameters, level spacings, $s$- and $p$-wave neutron strength functions, levels, $J$, $\pi$, neutron separation energy. Enriched target. Ge(Li) detector. Comparison with valence model predictions.