Reinvestigation of ^91sr and ^95Y Atomic Masses Using the JYFLTRAP Penning Trap

We report on the precise mass measurements of the ^91Sr and ^95Yisotopes performed using the JYFLTRAP double Penning trap mass spectrometer.The mass-excess values from this work, ME(^91Sr) =-83645.5(13) keV and ME(^95Y) = -81226.4(10) keV,deviate by 6.5(52) keV and -18(7) keV from the Atomic Mass Evaluation 2020(AME20). In the case of ^91Sr the new result disagrees with the ISOLTRAPvalue, while for ^95Y, it agrees with the older JYFLTRAP value.