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In recent years, the progress on low temperature detector technologies has allowed design of large scale experiments aiming at pushing down the sensitivity on the neutrino mass below 1\,eV. Even with outstanding performances in both energy…

In the present work we propose to study neutrino oscillations employing sources of monoenergetic neutrinos following electron capture by the nucleus. Since the neutrino energy is very low the smaller of the two oscillation lengths, L23,…

High Energy Physics - Phenomenology · Physics 2014-11-21 J. D. Vergados , Yu. N. Novikov

The Project 8 experiment aims to measure the neutrino mass using tritium beta decays. Beta-decay electron energies will be measured with a novel technique: as the electrons travel in a uniform magnetic field their cyclotron radiation will…

Instrumentation and Detectors · Physics 2019-08-14 N. S. Oblath

Since its original postulation by Wolfgang Pauli in 1930, the neutrino has played a prominent role in our understanding of nuclear and particle physics. In the intervening 80 years, scientists have detected and measured neutrinos from a…

High Energy Physics - Experiment · Physics 2015-06-16 J. A. Formaggio , G. P. Zeller

We briefly review the motivation to search for sterile neutrinos in the keV mass scale, as dark matter candidates, and the prospects to find them in beta decay or electron capture spectra, with a global perspective. We describe the…

High Energy Physics - Phenomenology · Physics 2016-10-31 O. Moreno , E. Moya de Guerra , M. Ramón Medrano

Recent proposals to study the mass of the "electron" neutrino at a sensitivity of 0.3 eV can be used to place limits on the right handed and scalar charged currents at a level which improves on the present experimental limits. Indeed the…

High Energy Physics - Phenomenology · Physics 2007-05-23 B. H. J. McKellar , M. Garbutt , G. J. Stephenson , T. Goldman

In this paper we present a study of the interaction of low energy electron antineutrino on nuclei that undergo electron capture. We show that the two corresponding crossed reactions have a sizeable cross section and are both suitable for…

High Energy Physics - Phenomenology · Physics 2009-11-13 Alfredo G. Cocco , Gianpiero Mangano , Marcello Messina

A new method to study the effects of neutrino masses on a supernova neutrino signal is proposed. The method relies exclusively on the analysis of the full statistics of neutrino events, it is independent of astrophysical assumptions, and…

Astrophysics · Physics 2009-11-10 Enrico Nardi , Jorge I. Zuluaga

With the compelling evidence for massive neutrinos from recent neutrino oscillation experiments, one of the most fundamental tasks of particle physics over the next years will be the determination of the absolute mass scale of neutrinos,…

High Energy Physics - Experiment · Physics 2007-05-23 Christian Weinheimer

Neutrino oscillations are studied employing sources of low energy monoenergetic neutrinos following electron capture by the nucleus and measuring electron recoils. Since the neutrino energy is very low the oscillation length appearing in…

High Energy Physics - Phenomenology · Physics 2011-01-27 J. D. Vergados , Y. Giomataris , Yu. N. Novikov

It is well known that the neutrino masses affect the shape of the energy spectrum of tritium beta-decay electrons. However, experiments have yet to measure that distortion. The Project 8 experiment proposes to measure the spectral…

Nuclear Experiment · Physics 2011-10-12 N. S. Oblath

The shape of the beta decay energy distribution is sensitive to the mass of the electron neutrino. Attempts to measure the endpoint shape of tritium decay have so far seen no distortion from the zero-mass form. Here we show that a new type…

Nuclear Experiment · Physics 2019-08-14 J. A. Formaggio

The low energy part of the reactor neutrino spectra has not been experimentally measured. Its uncertainties limit the sensitivities in certain reactor neutrino experiments. The origin of these uncertainties are discussed, and the effects on…

High Energy Physics - Experiment · Physics 2009-09-25 Hau-Bin Li , Henry T. Wong

One of the most important tasks in neutrino physics is to determine the neutrino mass scale to distinguish between hierarchical and degenerate neutrino mass models and to clarify the role of neutrinos as dark matter particles in the…

High Energy Physics - Experiment · Physics 2007-05-23 Christian Weinheimer

The KATRIN experiment aims to determine the neutrino mass scale with a sensitivity of 200 meV/c^2 (90% C.L.) by a precision measurement of the shape of the tritium $\beta$-spectrum in the endpoint region. The energy analysis of the decay…

The determination of the neutrino mass is an open issue in modern particle physics and astrophysics. The direct mass measurement is the only theory-unrelated experimental tool capable to probe such quantity. The HOLMES experiment aims to…

Thanks to oscillation experiments it is now an established fact that neutrinos are massive particles. Yet, the assessment of neutrinos absolute mass scale is still an outstanding challenge in particle physics and cosmology as oscillation…

Instrumentation and Detectors · Physics 2017-06-28 Andrea Giachero

Neutrino oscillation experiments show that neutrinos have mass; however, the absolute mass scale is exceedingly difficult to measure and is currently unknown. A promising approach is to measure the energies of the electrons released during…

Instrumentation and Detectors · Physics 2024-01-09 Stafford Withington , Christopher Thomas , Songyuan Zhao

Background: The strength of electron capture for medium mass nuclei has a significant effect on the evolution of supernovae. There is insufficient knowledge of these strengths and very little data for important radioactive nuclei. Purpose:…