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arXiv · 0806.2543

On the Time-Modulation of the beta^+$-Decay Rate of H-like 140Pr58+ Ion

A. N. Ivanov·E. L. Kryshen·M. Pitschmann·P. Kienle
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Abstract

According to recent experimental data at GSI, the rates of the number of daughter ions, produced by the nuclear K-shell electron capture (EC) decays of the H-like ions 140Pr58+ and 142Pm60+, are modulated in time with periods T_(EC) simeq 7 s and amplitudes a_(EC) simeq 0.20. We study a possible time-dependence of the nuclear positron (beta^+) decay rate of the H-like 140Pr58+. We show that the time-dependence of the beta^+ decay rate of the H-like 140Pr58+ ion as well as any H-like heavy ions cannot be observed. This result can be used as a prediction for future analysis of the time-dependence of the beta^+ decay rates of the H-like heavy ions 140Pr58+ and 142Pm60+ at GSI for the test of the measuring method.

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A. N. Ivanov, E. L. Kryshen, M. Pitschmann, P. Kienle. 2008-06-16. On the Time-Modulation of the beta^+$-Decay Rate of H-like 140Pr58+ Ion. https://doi.org/10.1103/physrevlett.101.182501

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