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It has been suggested that the reported temporal oscillations in the weak decay of H-like ions circulating in the GSI storage ring may be accounted for by interference between two different momentum components of the wave function of the…

High Energy Physics - Phenomenology · Physics 2008-11-12 Murray Peshkin

A new experiment studying the behavior of a radioactive ion before its weak decay by K-capture suggests that neutrino masses and mixing can be investigated without detecting the neutrino. Every weak decay can be observed, thus avoiding the…

High Energy Physics - Phenomenology · Physics 2009-01-08 Harry J. Lipkin

This paper is addressed to the proof of the important role of measuring apparatus, i.e. the measuring process, in the formation of necessary and sufficient conditions for the explanation of a time modulation of K-shell electron capture (EC)…

High Energy Physics - Phenomenology · Physics 2014-06-11 A. N. Ivanov , P. Kienle

I conjecture that the time modulated decay rates reported in single ion measurements of two body electron capture decay of hydrogen like heavy ions at GSI may be related to neutrino spin precession in the static magnetic field of the…

Nuclear Theory · Physics 2014-11-20 Avraham Gal

Quantum mechanical theory disallows the model that has been used to infer the neutrino mass difference from the reported "GSI oscillations" in the rates of decay of hydrogen-like ions by electron capture. It has not been proved that the…

Nuclear Theory · Physics 2015-04-16 Murray Peshkin

We analyse recent experimental data on the GSI oscillations of the hydrogen-like heavy {^{142}}{\rm Pm}^{60+} ions that is a time modulation of the K-shell electron capture (EC) decay rate. We follow the mechanism of the GSI oscillations,…

High Energy Physics - Phenomenology · Physics 2014-07-18 A. N. Ivanov , P. Kienle

Recently, an experiment at GSI Darmstadt has observed oscillating decay rates of heavy ions. Several controversial attempts have been made to explain this effect in terms of neutrino mixing. We briefly describe the experimental results,…

High Energy Physics - Phenomenology · Physics 2008-12-18 Hendrik Kienert , Joachim Kopp , Manfred Lindner , Alexander Merle

Oscillatory behavior of electron capture rates in the two-body decay of hydrogen-like ions into recoil ions plus undetected neutrinos, with a period of approximately 7 s, was reported in storage ring single-ion experiments at the GSI…

Nuclear Theory · Physics 2010-11-30 Avraham Gal

Reported oscillations in the rate of decay of certain ions by K-electron capture have raised questions about whether and how such oscillations can arise in quantum mechanical theory and whether they can measure the neutrino mass difference.…

Nuclear Theory · Physics 2015-05-05 Murray Peshkin

It is tempting to try to explain the reported time-modulated decay rate in the GSI experiment by arguing that the matrix element for decay at any time results in an interference between two slightly different momentum values in the parent…

High Energy Physics - Phenomenology · Physics 2008-03-07 Murray Peshkin

Here we reply critically to the comments by Giunti (arXiv:0801.4639 [nucl-th]) and justify our explanation of the experimentally observed periodic interference term in the rate of the K-shell electron capture decay of the H-like ions…

Nuclear Theory · Physics 2008-03-11 A. N. Ivanov , R. Reda , P. Kienle

GSI experiment studying oscillations in K-capture decay of radioactive ion investigates neutrino masses and mixing without detecting neutrino. Even when neutrino is not detected quantum mechanics relates initial and final states. The basic…

High Energy Physics - Phenomenology · Physics 2012-02-14 Harry J. Lipkin

We give comments on the recent paper by Giunti (Phys. Lett. B 665, 92 (2008), arXiv: 0805.0431 [hep-ph]) with a critique of our explanation of the experimentally observed periodic time-dependence of the interference term in the rate of the…

Nuclear Theory · Physics 2008-07-18 A. N. Ivanov , E. L. Kryshen , M. Pitschmann , P. Kienle

According to 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 heavy ions with one electron in the K-shell, such as 142Pr58+, 142Pm60+ and 122I52+,…

Nuclear Theory · Physics 2009-09-02 A. N. Ivanov , P. Kienle

According to the recent experimental data of a GSI--experiment, the rate of the number of daughter ions $^{140}{\rm Ce}^{58+}$, produced by a nuclear K--shell electron capture (EC) of the H--like ion ${^{140}}{\rm Pr}^{58+}$, is modulated…

Nuclear Theory · Physics 2008-01-22 Manfried Faber

In a recent paper, oscillations observed in the electron capture probability were attributed to the mixing of neutrino mass eigenstates. This paper is shown to be in error in two respects.

High Energy Physics - Phenomenology · Physics 2008-04-08 H. Burkhardt , J. Lowe , G. J. Stephenson , T. Goldman , and Bruce H. J. McKellar

The claims that the GSI time anomaly is due to the mixing of neutrinos in the final state of the observed electron-capture processes are refuted. With the help of an analogy with a double-slit experiment, it is shown that the standard…

High Energy Physics - Phenomenology · Physics 2009-04-17 Carlo Giunti

According to GSI experiment Phys.Lett.B 664, 162 (2008), the rate of the daughter ion production by the K-shell electron capture (with neutrino emission) in H-like ions 142Pm, 140Pr and 152I is modulated with a period of 6 to 7 seconds. In…

Nuclear Theory · Physics 2010-04-22 V. V. Flambaum

The claims that the GSI time anomaly is due to the mixing of neutrinos in the final state of the observed electron-capture decays of hydrogen-like heavy ions are refuted with the help of an analogy with a double-slit experiment. It is a…

High Energy Physics - Phenomenology · Physics 2014-11-20 Carlo Giunti

We calculate the neutrino masses, using the experimental data on the periods of the time modulation of the K-shell electron capture (EC) decay rates of the H-like heavy ions, measured at GSI. The corrections to neutrino masses, caused by…

Nuclear Theory · Physics 2011-02-15 R. Hoellwieser , A. N. Ivanov , P. Kienle , M. Pitschmann
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