Mass Measurements and Implications for the Energy of the High-Spin Isomer in 94Ag

Abstract

Nuclides in the vicinity of 94Ag have been studied with the Penning trap mass spectrometer JYFLTRAP at the Ion-Guide Separator On-Line. The masses of the two-proton-decay daughter 92Rh and the beta-decay daughter 94Pd of the high-spin isomer in 94Ag have been measured, and the masses of 93Pd and 94Ag have been deduced. When combined with the data from the one-proton or two-proton-decay experiments, the results lead to contradictory mass excess values for the high-spin isomer in 94Ag, -46370(170) or -44970(100) keV, corresponding to excitation energies of 6960(400) or 8360(370) keV, respectively.

4 pages, 3 figures and 3 tables; v2: updated figures and references, published in Physical Review Letters

References in corpus (3)

• Q_EC values of the Superallowed beta Emitters 50Mn and 54Co
• Evidence for a breakdown of the Isobaric Multiplet Mass Equation: A study of the A=35, T=3/2 isospin quartet
• Q-values of the Superallowed beta-Emitters 26m-Al, 42-Sc and 46-V and their impact on V_ud and the Unitarity of the CKM Matrix

Cited by in corpus (5)

• Mass measurements in the vicinity of the rp-process and the nu p-process paths with JYFLTRAP and SHIPTRAP
• Three-body decay of ${}^6$Be
• Mass measurements of very neutron-deficient Mo and Tc isotopes and their impact on rp process nucleosynthesis
• Penning trap mass measurements on (99-109)$Cd with ISOLTRAP and implications on the rp process
• Development of a low-energy radioactive ion beam facility for the MARA separator