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In this talk, a short discussion of the GSI anomaly is given. We discuss the physics involved using a comparison with pion decay, and explain why the observed oscillations cannot be caused by standard neutrino mixing.

High Energy Physics - Phenomenology · Physics 2014-11-20 Alexander Merle

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

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

With the help of an analogy with a double-slit experiment, it is shown that the standard method of calculation of the rate of an interaction process by adding the rates of production of all the allowed final states, regardless of a possible…

High Energy Physics - Phenomenology · Physics 2008-11-26 Carlo Giunti

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 study the deviations from the usual exponential decay law for quantum mechanical systems. We show that simple and physically motivated deviations from the Breit-Wigner energy distribution of the unstable state are sufficient to generate…

Nuclear Theory · Physics 2013-12-04 Francesco Giacosa , Giuseppe Pagliara

We discuss deviations from the exponential decay law which originate when going beyond the Breit-Wigner distribution for an unstable state. In particular, we concentrate on an oscillating behavior, reminiscent of the Rabi-oscillations, in…

Nuclear Theory · Physics 2012-07-12 Francesco Giacosa , Giuseppe Pagliara

The relationship between Breit-Wigner distribution as an underlying basis for decaying unstable quantum systems and GSI experiment (anomaly) has not been addressed properly in the literatures. We show that quantum beats can be obtained…

High Energy Physics - Phenomenology · Physics 2019-10-07 M. S. Hosseini , S. A. Alavi

The electron-capture decay of 180Re has been investigated to search for oscillations in the decay probability as reported from a recent measurement at GSI, Darmstadt. The production period was kept short compared to the reported oscillation…

Nuclear Experiment · Physics 2011-06-27 Thomas Faestermann , Fritz Bosch , Ralf Hertenberger , Ludwig Maier , Reiner Kruecken , Georg Rugel

We investigate the emergence of oscillations in the decay law of unstable systems. We discuss in particular the case of the so-called GSI anomaly seen in the electron capture decays of H-like ions and prove that such oscillations cannot be…

Nuclear Theory · Physics 2018-03-14 Francesco Giacosa , Giuseppe Pagliara

A recently proposed solution of the `GSI anomaly' by spin precession of the decaying heavy ions in the magnetic field that controls their circular motion at the GSI storage ring [G. Lambiase, G. Papini, G. Scarpetta, PLB 718 (2013) 998,…

Nuclear Theory · Physics 2014-06-12 Avraham Gal

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

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

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

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

Quasi-set theory $\cal Q$ allows us to cope with certain collections of objects where the usual notion of identity is not applicable, in the sense that $x = x$ is not a formula, if $x$ is an arbitrary term. $\cal Q$ was partially motivated…

Quantum Physics · Physics 2019-10-08 Adonai S. Sant'Anna

Based on a re-formulation of the classical explanation of quantum mechanical Gaussian dispersion (Groessing et al. 2010) as well as interference of two Gaussians (Groessing et al. 2012), we present a new and more practical way of their…

Quantum Physics · Physics 2013-04-11 Johannes Mesa Pascasio , Siegfried Fussy , Herbert Schwabl , Gerhard Groessing

In this investigation, we have suggested a special two-slit experiment which can distinguish between the standard and the Bohmian quantum mechanics. At the first step, we have shown that observable individual predictions obtained from these…

Quantum Physics · Physics 2007-05-23 M. Golshani , O. Akhavan

We propose a model in which a recently reported modulation in the decay of the hydrogenlike ions ${}^{140}$Pr$^{\, 58 +}$, ${}^{142}$Pm$^{\, 60 +}$ and ${}^{122}$I$^{\, 52 +}$ arises from the coupling of rotation to the spin of electron and…

Nuclear Theory · Physics 2015-06-05 G. Lambiase , G. Papini , G. Scarpetta

A fundamental principle of quantum theory, clearly manifested in the two-slit experiment, is that for any alternatives that cannot be distinguished by measurement physical predictions are obtained by summation of their amplitudes. In…

Quantum Physics · Physics 2009-07-17 C. Anastopoulos , N. Savvidou
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