Abstract

Levels in $^{92}\mathrm{Zr}$ were studied by a high resolution ($d$,$p$) reaction on $^{91}\mathrm{Zr}$. Outgoing particles were momentum analyzed in a split-pole spectrograph and detected in nuclear emulsion plates. A total of 64 levels was identified up to about 5.4 MeV of excitation, several of them not previously reported. Experimental angular distributions were compared to distorted-wave Born-approximation predictions and reduced spectroscopic factors obtained. Energies of centers of gravity of each shell-model orbital were deduced and effective ${({d}_{\frac{5}{2}})}^{2}$ and (${s}_{\frac{1}{2}}{d}_{\frac{5}{2}}$) neutron-neutron two-body diagonal matrix elements were estimated.NUCLEAR REACTIONS $^{91}\mathrm{Zr}$($d$,$p$), $E=12$ MeV; measured $\ensuremath{\sigma}({E}_{p},\ensuremath{\theta})$. $^{92}\mathrm{Zr}$ deduced levels $l$, $J$, $\ensuremath{\pi}$, reduced spectroscopic factors. Enriched targets.

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