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We study the mixing of different kind of fields (scalar in 0+1D, scalar in 3+1D, fermion in 3+1D) treating the mixing term as an interaction. To this aim, we employ the usual perturbative series in the interaction picture. We find that…

High Energy Physics - Phenomenology · Physics 2023-07-31 Massimo Blasone , Francesco Giacosa , Luca Smaldone , Giorgio Torrieri

By resorting to recent results on the relativistic currents for mixed (flavor) fields, we calculate a space-time dependent neutrino oscillation formula in Quantum Field Theory. Our formulation provides an alternative to existing approaches…

High Energy Physics - Phenomenology · Physics 2008-11-26 Massimo Blasone , Paulo Pires Pacheco , Hok Wan Chan Tseung

Implications of some proposed theories of quantum gravity for neutrino flavor oscillations are explored within the context of modified dispersion relations of special relativity. In particular, approximate expressions for…

General Relativity and Quantum Cosmology · Physics 2010-05-12 Joy Christian

We analyze the problem of neutrino oscillations via a fermionic particle detector model inspired by the physics of the Fermi theory of weak interactions. The model naturally leads to a description of emission and absorption of neutrinos in…

High Energy Physics - Phenomenology · Physics 2020-11-24 Bruno de S. L. Torres , T. Rick Perche , André G. S. Landulfo , George E. A. Matsas

In addition to flavor oscillations, Dirac neutrinos also undergo the so-called chiral oscillations, a consequence of the free-particle dynamics under the Dirac equation. Such a transition between different chiralities affect the flavor…

Quantum Physics · Physics 2024-11-13 Victor Bittencourt , Massimo Blasone , Gennaro Zanfardino

An improved treatment of neutrino oscillations follows when neutrino mass eigenstates and their associated recoiling particle states are entangled. When the neutrino and its recoil partner are treated as a single entangled quantum state the…

High Energy Physics - Phenomenology · Physics 2015-02-03 R. G. Hamish Robertson

We suggest that the presence of a quantum gravity induced minimal length can be explored using neutrino oscillation probabilities. Neutrinos seem ideally suited for this investigation because they can propagate freely over large distances…

High Energy Physics - Phenomenology · Physics 2011-11-21 Martin Sprenger , Piero Nicolini , Marcus Bleicher

In this article, the axioms presented in the first one are reformulated according to the special theory of relativity. Using these axioms, quantum mechanic's relativistic equations are obtained in the presence of electromagnetic fields for…

Quantum Physics · Physics 2008-02-03 L. S. F. Olavo

During a period of about two decades we have realized a programme of systematic investigations of different aspects of neutrino propagation in extreme external environments and have predicted and studied several new phenomena that are…

High Energy Physics - Phenomenology · Physics 2020-09-04 Alexander Studenikin

We study in the framework of relativistic quantum mechanics the evolution of a system of two Dirac neutrinos that mix with each other and have non-vanishing magnetic moments. The dynamics of this system in an external magnetic field is…

High Energy Physics - Phenomenology · Physics 2008-11-26 Maxim Dvornikov , Jukka Maalampi

Neutrino oscillations are examined under the broad requirements of Poincar\'e-invariant scattering theory in an S-matrix formulation. This approach can be consistently applied to theories with either field or particle degrees of freedom.…

High Energy Physics - Phenomenology · Physics 2010-04-20 B. D. Keister , W. N. Polyzou

The observed neutrino flavor transitions are currently explained by the three flavor neutrino oscillation phenomenon, considered to be the leading order mechanism behind the flavor transitions. Currently existing data from LSND, MiniBooNE…

High Energy Physics - Experiment · Physics 2015-11-03 Marianna Gabrielyan

The problems of neutrino production states, prepared to the oscillation process, in the case of non standard interactions, are briefly discussed. Quantum neutrino states are determined from the dynamics of a production process. We show,…

High Energy Physics - Phenomenology · Physics 2010-10-29 Robert Szafron , Marek Zralek

We consider the neutrino physics of models with a sequentially broken U(2) flavor symmetry. Such theories yield the observed pattern of quark and lepton masses, while maintaining sufficient degeneracies between superparticles of the first…

High Energy Physics - Phenomenology · Physics 2014-11-17 Christopher D. Carone , Lawrence J. Hall

We present a covariant wave-packet approach to neutrino flavor transitions in vacuum. The approach is based on the technique of macroscopic Feynman diagrams describing the lepton number violating processes of production and absorption of…

High Energy Physics - Phenomenology · Physics 2014-11-21 Dmitry V. Naumov , Vadim A. Naumov

It is shown that the neutrino oscillations phenomenon may be attributed to the Wilson fermion doubling phenomenon. The Wilson fermion doubling exists only on the lattices, both periodic and non-periodic (simplicial complexes). Just the last…

High Energy Physics - Theory · Physics 2014-07-23 S. N. Vergeles

We propose a theory for neutrino oscillations, in which the flavour neutrinos are treated as waves of massless particles propagating in a "refractive quantum vacuum" and obeying a relativistically covariant equation of motion. The…

High Energy Physics - Phenomenology · Physics 2025-04-23 Markku Oksanen , Nico Stirling , Anca Tureanu

The recent evidence for neutrino oscillations opens a new and exciting era in neutrino physics. The next generation of accelerator based neutrino oscillation experiments are expected to confirm the nature of the oscillations, and begin to…

High Energy Physics - Phenomenology · Physics 2009-09-25 Steve Geer

Neutrino oscillation is phenomenon of random transition from a flavor state of neutrino to another, and should obey quantum statistics theory, and constitutes Markoffian process. The process is depicted by method of CTRW (continuous time…

High Energy Physics - Phenomenology · Physics 2020-02-14 Xiao-Yan Wang , Xiang-Jun Chen

Neutrino and anti-neutrino states coming from the neutral current or $Z_0$ decay are blind with respect to the flavor. The neutrino oscillation is observed and formulated when its flavor is known. However, it has been shown that we can see…

High Energy Physics - Phenomenology · Physics 2015-05-27 M. M. Ettefaghi , Z. Askaripour Ravari