English
Related papers

Related papers: Decay Oscillations in Electron Capture and the Neu…

200 papers

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 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

It has been suggested that the temporal oscillations in the rate of decay of Pr ions reported in the GSI K-capture experiment arise from interference between different values of the momentum of the Pr ions. It is shown here that any such…

High Energy Physics - Phenomenology · Physics 2008-05-01 Murray Peshkin

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

Oscillations in the electron-capture (EC) decay rate observed in storage-ring experiments are reconsidered in connection with the neutrino mass difference. Taking into account that - according to Relativity Theory - time is slowed down in…

High Energy Physics - Phenomenology · Physics 2015-01-21 Walter Potzel

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

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

Neutrino oscillations occur only if it is impossible to determine $\nu$ mass by using conservation laws on measurements of nucleon-lepton system absorbing $\nu$. No oscillations if $\nu$ detector is mass spectrometer. Beam is split into…

High Energy Physics - Phenomenology · Physics 2012-07-25 Harry J. Lipkin

The apparent symmetry between energy and momentum found in all covariant descriptions of neutrino oscillations is destroyed in the neutrino detector, a quantum mechanical system described by a density matrix diagonal in energy but not in…

High Energy Physics - Phenomenology · Physics 2007-05-23 Harry J. Lipkin

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

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

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

A description of neutrino oscillation phenomena is presented which is based on relativistic quantum mechanics and includes both entangled state and source dependent aspects, unlike both of the conventional approaches which use either equal…

High Energy Physics - Phenomenology · Physics 2010-11-15 T. Goldman

While the mass differences between neutrino mass states are known, their absolute masses and mass hierarchy have not yet been determined. Determining the mass of neutrinos provides access to physics beyond the Standard Model and the…

We derive the character of neutrino oscillations that results from a model of equivalence principle violation suggested recently by Damour and Polyakov as a plausible consequence of string theory. In this model neutrino oscillations will…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. Halprin , C. N. Leung

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

The theory underlying neutrino oscillations has been described at length in the literature. The neutrino state produced by a weak decay is usually portrayed as a linear superposition of mass eigenstates with, variously, equal energies or…

High Energy Physics - Phenomenology · Physics 2010-04-21 Andrew G. Cohen , Sheldon L. Glashow , Zoltan Ligeti

Neutrino scillations cannot arise from an initial isolated one particle state if four-momentum is conserved. The transition matrix element is generally squared and summed over all final states with no interference between orthogonal final…

High Energy Physics - Phenomenology · Physics 2009-05-11 Harry J. Lipkin

In the current theory, neutrino oscillations require that the masses of neutrinos are non-vanishing. By analogy with the oscillation of quantum two-state system, we assume that neutrino oscillations may be regarded as quantum tunneling…

General Physics · Physics 2024-12-13 Hai-Long Zhao

Oscillation experiments show that neutrinos have masses. They however only determine the neutrinop mass differences. Information on the absolute masses can be obtained by studying the kinematics in weak decays, or by searching for…

High Energy Physics - Experiment · Physics 2007-05-23 Jean-Luc Vuilleumier
‹ Prev 1 2 3 10 Next ›