Shell-gap reduced level densities in ${}^{89,90}$Y

M. Guttormsen, A. C. Larsen, F. L. Bello Garrote +14

Particle-$\gamma$ coincidences from the ${}^{89}$Y($p,p^{\prime }\gamma$)${}^{89}$Y and ${}^{89}$Y($d,p\gamma$)${}^{90}$Y reactions were utilized to obtain $\gamma$-ray spectra as function of excitation energy. The…