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We consider neutrino mixing and oscillations in quantum field theory and compute the neutrino lepton charge in decay processes where neutrinos are generated. We also discuss the proper definition of flavor charge and states and clarify the…

High Energy Physics - Phenomenology · Physics 2009-11-11 Massimo Blasone , Antonio Capolupo , Francesco Terranova , Giuseppe Vitiello

The two-particle wave function of neutrino and antineutrino after the decay of a Z boson is found as a solution of an initial value problem. The wave packet of this state involves the coherent superposition of massive neutrinos and…

High Energy Physics - Phenomenology · Physics 2012-01-17 I. M. Pavlichenkov

The Standard Model of particle physics describes neutrinos as massless, chargeless elementary particles that come in three different flavours. However, recent experiments indicate that neutrinos not only have mass, but also have multiple…

General Physics · Physics 2015-11-23 Spandan Mondal

The theory of neutrino oscillation predicts that if both neutrino and antineutrino coming from $Z_0$ decay are detected, one can observe an oscillation pattern between the corresponding detectors. This prediction is based on two properties;…

High Energy Physics - Phenomenology · Physics 2023-01-19 M. M. Ettefaghi , Z. Askaripour Ravari

The oscillating probabilities of lepton flavor changing neutrino oscillation processes, where neutrinos are detected by charged-current and neutral-current interactions, are calculated in a quantum field-theoretical approach to neutrino…

High Energy Physics - Phenomenology · Physics 2018-11-07 Vadim O. Egorov , Igor P. Volobuev

Starting from the symmetry of lepton flavor democracy, we propose and discuss a simple pattern for the mass generation and flavor mixing of the charged leptons and neutrinos. The three neutrino masses are nearly degenerate, and the flavor…

High Energy Physics - Phenomenology · Physics 2009-10-28 H. Fritzsch , Z. Z Xing

Here we discuss the description of flavor neutrinos produced or detected in processes which involve more than one neutrino. We show that in these cases flavor neutrinos cannot be separately described by pure states, but require a density…

High Energy Physics - Phenomenology · Physics 2018-11-20 Gabriel Cozzella , Carlo Giunti

We present a derivation of the flavor neutrino states which describe neutrinos produced or detected in charged-current weak-interaction processes, including those operating in neutrino oscillation experiments. We also present a covariant…

High Energy Physics - Phenomenology · Physics 2017-08-23 Carlo Giunti

Neutrinos in the Standard Model of particle physics are massless, neutral fermions that seemingly do little more than conserve 4-momentum, angular momentum, lepton number, and lepton flavour in weak interactions. In the last decade…

High Energy Physics - Experiment · Physics 2016-11-09 Scott M. Oser

I introduce a simple phenomenological model of lepton flavor mixing and CP violation based on the flavor democracy of charged leptons and the mass degeneracy of neutrinos. The nearly bi-maximal mixing pattern, which can interpret current…

High Energy Physics - Phenomenology · Physics 2009-10-31 Zhi-zhong Xing

We analyze neutrino oscillations in a thought experiment in which neutrinos are produced by electrons on target nuclei. The neutrinos are detected through charged lepton production in their collision with nuclei in detector. Both the target…

High Energy Physics - Phenomenology · Physics 2010-04-05 A. D. Dolgov , O. V. Lychkovskiy , A. A. Mamonov , L. B. Okun , M. V. Rotaev , M. G. Schepkin

The phases of quantum interference effects in charged lepton production by neutrinos (neutrino oscillations) following pion decay at rest and in flight, muon decay and nuclear $\beta-$decay at rest as well as for `muon oscillations'…

High Energy Physics - Phenomenology · Physics 2016-08-16 J. H. Field

The physics responsible for neutrino masses and lepton mixing remains unknown. More experimental data are needed to constrain and guide possible generalizations of the standard model of particle physics, and reveal the mechanism behind…

High Energy Physics - Phenomenology · Physics 2015-06-15 Andre de Gouvea , Petr Vogel

The three-flavor neutrino oscillation model describes the well-studied phenomenon of neutrinos produced in association with one charged lepton: electron, muon, or tau, and then later detected in association with a possibly different charged…

High Energy Physics - Phenomenology · Physics 2026-03-25 Peter B. Denton

We write the neutrino mass eigenstate into the weak doublet of the group $SU(2)_L$ . The massive neutrino is written as the mixture of the flavor neutrino. The flavor changing Lagrangian of lepton-W boson coupling were obtained. The…

High Energy Physics - Phenomenology · Physics 2014-06-11 Ong Jian Fuh , Ithnin Abdul Jalil

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

We analyze a thought neutrino oscillation experiment in which neutrinos are produced by electrons colliding with atomic nuclei of a target. The neutrinos are detected by observing charged leptons, which are produced by neutrinos colliding…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. D. Dolgov , L. B. Okun , M. V. Rotaev , M. G. Schepkin

Since the discovery of neutrino oscillations it is known that lepton flavour is not conserved. Lepton flavour violating processes in the charged lepton sector have so far however eluded detection; as they are heavily suppressed in the…

High Energy Physics - Experiment · Physics 2013-02-11 Niklaus Berger

If neutrinos are massive, `lepton flavour eigenstates' are absent from the amplitudes of all Standard Model processes. Measurements of $\Gamma(\pi \to e \nu)/\Gamma(\pi \to \mu \nu)$ and of the MNS matrix are shown to exclude the existence…

High Energy Physics - Phenomenology · Physics 2016-08-16 J. H. Field

Neutrino oscillations, as recently reported by the Super-Kamiokande collaboration, imply that lepton numbers could be violated, and $\tau^{\pm}\to \mu^{\pm}+\ell^{+}+\ell^{-},\tau^{\pm}\to\mu^{\pm}+\rho^0$ are some typical examples. We…

High Energy Physics - Phenomenology · Physics 2011-09-13 X. Y. Pham
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