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arXiv · 1201.4942

Direct mass measurements of cadmium and palladium isotopes and their double-beta transition Q-values

C. Smorra·T. Beyer·K. Blaum·M. Block·Ch. E. Düllmann·K. Eberhardt·M. Eibach·S. Eliseev·Sz. Nagy·W. Nörtershäuser·D. Renisch
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Abstract

The Q-value of the double-electron capture in Cd-108 has been determined to be (272.04 +/- 0.55) keV in a direct measurement with the double-Penning trap mass spectrometer TRIGA-TRAP. Based on this result a resonant enhancement of the decay rate of Cd-108 is excluded. We have confirmed the double-beta transition Q-values of Cd-106 and Pd-110 recently measured with the Penning-trap mass spectrometers SHIPTRAP and ISOLTRAP, respectively. Furthermore, the atomic masses of the involved nuclides Cd-106, Cd-108, Cd-110, Pd-106, Pd-108 and Pd-110 have been directly linked to the atomic mass standard.

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C. Smorra, T. Beyer, K. Blaum, M. Block, Ch. E. Düllmann, K. Eberhardt, M. Eibach, S. Eliseev, Sz. Nagy, W. Nörtershäuser, D. Renisch. 2012-01-31. Direct mass measurements of cadmium and palladium isotopes and their double-beta transition Q-values. https://doi.org/10.1103/physrevc.85.027601

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