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In this work, we employ Ordinary Differential Equation solution method to study neutrino spin oscillations in the case when they are gravitationally scattered off a rotating Kerr black hole. Previously, this problem involved the integral…

High Energy Physics - Phenomenology · Physics 2025-10-31 Mridupawan Deka , Maxim Dvornikov

We study the evolution of massive mixed Dirac and Majorana neutrinos in matter under the influence of a transversal magnetic field. The analysis is based on relativistic quantum mechanics. We solve exactly the evolution equation for…

High Energy Physics - Phenomenology · Physics 2009-07-09 Maxim Dvornikov , Jukka Maalampi

We study neutrino oscillations within the framework of extended theories of gravity. Based on the covariant reformulation of Pontecorvo formalism, we evaluate the oscillation probability of neutrinos propagating in static spacetimes…

General Relativity and Quantum Cosmology · Physics 2020-01-22 Luca Buoninfante , Giuseppe Gaetano Luciano , Luciano Petruzziello , Luca Smaldone

Neutrino oscillations in a hot and dense astrophysical environment such as a core-collapse supernova pose a challenging, seven-dimensional flavor transport problem. To make the problem even more difficult (and interesting), neutrinos can…

High Energy Physics - Phenomenology · Physics 2015-09-11 Huaiyu Duan

The symmetry of the problem of the apparent deficit in upward-going atmospheric muon neutrinos reveals two possible, nonexclusive kinds of solution: Nonlinearity in distance or nonlinearity in angle of observation. Nonlinearity in distance…

General Physics · Physics 2016-09-08 John Michael Williams

Predicting the flavor composition of neutrinos from supernovae is a challenging task, primarily due to the high neutrino densities at their core. In such an environment, neutrino self-interactions give rise to collective effects that have…

High Energy Physics - Phenomenology · Physics 2025-06-03 Antonio Capanema , Yago Porto , Maria Manuela Saez

We recently studied neutrinos flavor oscillations in vacuum within conformal coupling models. In this paper, we extend that analysis by investigating neutrino flavor oscillations inside matter within a general conformal coupling scenario.…

High Energy Physics - Phenomenology · Physics 2023-05-15 Fayçal Hammad , Parvaneh Sadeghi , Nicolas Fleury

A revolution in our understanding of the neutrino sector is underway, driven by observations that are interpreted in terms of changes in neutrino flavors as they propagate. Since neutrino oscillations occur only if neutrinos are massive,…

High Energy Physics - Phenomenology · Physics 2007-05-23 V. Barger , K. Whisnant

Astrophysical objects such as active-galactic nuclei (AGN) and gamma-ray bursts (GRBs) can be sources of high energy, astrophysical neutrinos. The decay of charged pions produces electron and muon-flavor neutrinos from the primary decay of…

High Energy Physics - Phenomenology · Physics 2013-01-23 D. Hollander

Long gamma-ray bursts (GRBs) are associated with the gravitational collapse of very massive stars. The central engine of a GRB can collimate relativistic jets that propagate inside the stellar envelope. The shock waves produced when the jet…

High Energy Astrophysical Phenomena · Physics 2013-09-25 Florencia L. Vieyro , Gustavo E. Romero , Orlando L. G. Peres

Space-time localization diagrams ``unlock" subtle aspects of $\nu$ oscillations such as coherence and entanglement. Observability of propagation decoherence in oscillating neutrino state is discussed. The sizes of WPs of reactor and source…

High Energy Physics - Phenomenology · Physics 2022-12-21 Alexei Y Smirnov

We study two-flavor collective neutrino oscillations in the dense-neutrino region above the neutrino sphere in a supernova (SN). The angular dependence of the neutrino-neutrino interaction potential causes "multi-angle" effects that can…

High Energy Physics - Phenomenology · Physics 2008-11-26 Andreu Esteban-Pretel , Sergio Pastor , Ricard Tomas , Georg Raffelt , Gunter Sigl

Neutrino flavor instabilities have the potential to shuffle neutrinos between electron, mu, and tau flavor states, modifying the core-collapse supernova mechanism and the heavy elements ejected from neutron star mergers. Analytic methods…

High Energy Astrophysical Phenomena · Physics 2021-12-01 Sherwood Richers , Donald Willcox , Nicole ford

We explore the impact of strong gravitational fields on neutrino decoherence. To this aim, we employ the density matrix formalism to describe the propagation of neutrino wave packets in curved spacetime. By considering Gaussian wave…

High Energy Physics - Phenomenology · Physics 2019-12-18 Amélie Chatelain , Maria Cristina Volpe

The IceCube neutrino observatory measures the diffuse flux of high-energy astrophysical neutrinos by means of various techniques, and there exists a mild tension between spectra obtained in different analyses. The spectrum derived from…

High Energy Astrophysical Phenomena · Physics 2023-02-16 Kirill Riabtsev , Sergey Troitsky

We consider the collective neutrino plasma interactions, and study the electron plasma instabilities produced by a nearly mono-energetic neutrino beam in a plasma. We describe the mutual influence of neutrino flavor oscillations and…

Plasma Physics · Physics 2014-04-15 José Tito Mendonça , Fernando Haas , Antoine Bret

The wind driven by the intense neutrino emission from a protoneutron star (PNS) is an important site for producing nuclei heavier than the Fe group. Because of certain features in the neutrino angular distributions, the so-called fast…

High Energy Astrophysical Phenomena · Physics 2020-12-21 Zewei Xiong , Andre Sieverding , Manibrata Sen , Yong-Zhong Qian

It has been firmly established, that neutrinos change their flavour during propagation. This feature is attributed to the fact, that each flavour eigenstate is a superposition of three mass eigenstates, which propagate with different…

Quantum Physics · Physics 2015-06-18 Marek Góźdź , Andrzej Góźdź

As the increasing of neutrino energy or matter density, the neutrino oscillation in matter may undergo "vacuum-dominated", "resonance" and "matter-dominated" three different stages successively. Neutrinos endure very different matter…

High Energy Physics - Phenomenology · Physics 2020-02-26 Shu Luo

In this paper, we aim to explore the interplay between neutrinos and quantum gravity, illustrating some proposals about the use of these particles as probes for the supposed quantized structure of spacetime. The residual signatures of a…

General Relativity and Quantum Cosmology · Physics 2025-02-25 Marco Danilo Claudio Torri , Lino Miramonti
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