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Evidence of Partial Seniority Conservation in the $\pi{g}_{9/2}$ Shell for the $N=50$ Isotones

The reduced transition probabilities for the $4^+_1 \to 2^+_1$ and $2^+_1 \to 0^+_1$ transitions in $^{92}$Mo and $^{94}$Ru and for the $4^+_1 \to 2^+_1$ and $6^+_1 \to 4^+_1$ transitions in $^{90}$Zr have been determined in this experiment making use of a multinucleon transfer reaction. These resul...

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Bibliographic Details
Published in:Physical review letters 2022, Vol.129 (11)
Main Authors: Pérez-Vidal, R.M., Gadea, A., Domingo-Pardo, C., Gargano, A., Valiente-Dobón, J.J., Clément, E., Lemasson, A., Coraggio, L., Siciliano, M., Szilner, S., Bast, M., Braunroth, T., Collado, J., Corina, A., Dewald, A., Doncel, M., Dudouet, J., de France, G., Fransen, C., González, V., Hüyük, T., Jacquot, B., John, P.R., Jungclaus, A., Kim, Y.H., Korichi, A., Labiche, M., Lenzi, S., Li, H., Ljungvall, J., López-Martens, A., Mengoni, D., Michelagnoli, C., Müller-Gatermann, C., Napoli, D.R., Navin, A., Quintana, B., Ramos, D., Rejmund, M., Sanchis, E., Simpson, J., Stezowski, O., Wilmsen, D., Zielińska, M., Boston, A.J., Barrientos, D., Bednarczyk, P., Benzoni, G., Birkenbach, B., Boston, H.C., Bracco, A., Cederwall, B., Cullen, D.M., Didierjean, F., Eberth, J., Gottardo, A., Goupil, J., Harkness-Brennan, L.J., Hess, H., Judson, D.S., Kaşkaş, A., Korten, W., Leoni, S., Menegazzo, R., Million, B., Nyberg, J., Podolyak, Zs, Pullia, A., Ralet, D., Recchia, F., Reiter, P., Rezynkina, K., Salsac, M.D., Şenyiğit, M., Sohler, D., Theisen, Ch, Verney, D.
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Language:English
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Summary:The reduced transition probabilities for the $4^+_1 \to 2^+_1$ and $2^+_1 \to 0^+_1$ transitions in $^{92}$Mo and $^{94}$Ru and for the $4^+_1 \to 2^+_1$ and $6^+_1 \to 4^+_1$ transitions in $^{90}$Zr have been determined in this experiment making use of a multinucleon transfer reaction. These results have been interpreted on the basis of realistic shell-model calculations in the $f_{5/2}, p_{3/2}, p_{1/2},$ and $g_{9/2}$ proton valence space. Only the combination of extensive lifetime information and large scale shell-model calculations allowed the extent of the seniority conservation in the $N=50 g_{9/2}$ orbital to be understood. The conclusion is that seniority is largely conserved in the first $\pi{g}_{9/2}$ orbital.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.129.112501