Reinvestigation of $^{91}$Sr and $^{95}$Y atomic masses using the JYFLTRAP Penning trap

Author:

A. Jaries, M. Stryjczyk, A. Kankainen, T. Eronen, Z. Ge, M. Mougeot, A. Raggio, J. Ruotsalainen

Keyword:

Nuclear Experiment, Nuclear Experiment (nucl-ex)

journal:

date:

2023-10-26 16:00:00

Abstract

We report on the precise mass measurements of the $^{91}$Sr and $^{95}$Y isotopes performed using the JYFLTRAP double Penning trap mass spectrometer. The mass-excess values from this work, ${\mathrm{ME}(^{91}\mathrm{Sr}) = -83645.5(13)}$ keV and ${\mathrm{ME}(^{95}\mathrm{Y}) = -81226.4(14)}$ keV, are, respectively, 6.5(52) keV and $-18(7)$ keV off from the Atomic Mass Evaluation 2020 (AME20). In the case of $^{91}$Sr the new result does not agree with the ISOLTRAP value, while for $^{95}$Y, it agrees with the older JYFLTRAP value rejected by the AME20 evaluators.

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