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We study spin effects in the neutrino gravitational scattering by a supermassive black hole with a magnetized accretion disk having a finite thickness. We exactly describe the propagation of ultrarelativistic neutrinos on null geodesics and…

High Energy Physics - Phenomenology · Physics 2023-03-02 Maxim Dvornikov

We propose a modified Dirac equation for a massive neutrino moving in the presence of the background matter. The effects of the charged and neutral-current interactions with the matter as well as the matter motion and polarization are…

High Energy Physics - Phenomenology · Physics 2021-01-19 Alexander Studenikin , Alexei Ternov

We present quite a powerful method in investigations of different phenomena that can appear when neutrinos and electrons propagate in background matter. This method implies use of exact solutions of modified Dirac equations that contain the…

High Energy Physics - Phenomenology · Physics 2008-11-26 Alexander Studenikin

We present a rather powerful method in investigations of different phenomena that can appear when neutrinos and electrons propagate in background matter. This method is based on the use of the modified Dirac equations for particles wave…

High Energy Physics - Phenomenology · Physics 2015-06-25 Alexander Studenikin

When neutrinos propagate in a background, their gravitational couplings are modified by their weak interactions with the particles in the background. In a medium that contains electrons but no muons or taons, the matter-induced…

High Energy Physics - Phenomenology · Physics 2010-12-03 H. Athar , Jose F. Nieves

Terrestrial matter effects in neutrino propagation are T-invariant, so that any observed T violation when neutrinos pass through the Earth, such as an asymmetry between the transition probabilities P(nu_mu -> nu_e) and P(nu_e -> nu_mu),…

High Energy Physics - Phenomenology · Physics 2014-11-17 P. F. Harrison , W. G. Scott

We consider neutrino evolution master equations in dense moving and polarized matter consisted of electrons, neutrons, protons and neutrinos. We also take into account the neutrino magnetic moment interaction with a magnetic field. We point…

High Energy Physics - Phenomenology · Physics 2022-03-02 Zekun Chen , Konstantin Kouzakov , Yu-Feng Li , Vadim Shakhov , Konstantin Stankevich , Alexander Studenikin

We describe the effects of neutrino propagation in the matter of the Earth relevant for experiments with atmospheric and accelerator neutrinos and aimed at the determination of the neutrino mass hierarchy and CP-violation. These include (i)…

High Energy Physics - Phenomenology · Physics 2013-06-13 Mattias Blennow , Alexei Yu. Smirnov

The Spin Light of neutrino ($SL\nu$) is an electromagnetic radiation of the neutrino magnetic moment emitted when neutrino moves in external conditions (fields or matter). The effect can be of significance in the extremely dense matter of…

High Energy Physics - Phenomenology · Physics 2026-02-09 Alexander Grigoriev , Alexei Ternov

Even the elusive neutrinos are trapped in matter, albeit transiently, in several astrophysical circumstances. Their interactions with the ambient matter not only reveal the properties of such exotic matter itself, but also shed light on the…

Astrophysics · Physics 2009-11-06 M. Prakash , J. M. Lattimer , R. F. Sawyer , R. R. Volkas

We calculate the modification of the effective interaction of particles on the Fermi surface due to polarization contributions, with particular attention to spin-dependent forces. In addition to the standard spin-spin, tensor and spin-orbit…

Nuclear Theory · Physics 2009-11-10 A. Schwenk , B. Friman

An instructive method of deriving the matter potentials felt by neutrinos propagating through matter on Earth is presented. This paper thoroughly guides the reader through the calculations involving the effective weak Hamiltonian for lepton…

High Energy Physics - Phenomenology · Physics 2007-05-23 J. Linder

Because the propagation of neutrinos is affected by the presence of Earth matter, it opens new possibilities to probe the Earth's interior. Different approaches range from techniques based upon the interaction of high energy (above TeV)…

Geophysics · Physics 2008-11-26 Walter Winter

Considering the neutrino state like an open quantum system, we analyze its propagation in vacuum or in matter. After defining what can be called decoherence and relaxation effects, we show that in general the probabilities in vacuum and in…

High Energy Physics - Phenomenology · Physics 2016-05-11 Roberto L. N. Oliveira , Marcelo M. Guzzo , Pedro C. de Holanda

We present predictions for the interactions of energetic neutrinos with matter as they propagate through Earth towards large-volume detectors. Our results are based on state-of-the-art calculations of the high-energy neutrino-matter…

High Energy Physics - Phenomenology · Physics 2020-09-17 Alfonso Garcia , Rhorry Gauld , Aart Heijboer , Juan Rojo

An ultralight dark matter may have interesting implications in neutrino physics which have been studied actively in recent years. It is pointed out that there appears yet unexplored medium effect in neutrino transitions which occurs at the…

High Energy Physics - Phenomenology · Physics 2023-01-25 Eung Jin Chun

Neutrino tensor interactions have gained prominence in the study of coherent elastic neutrino-nucleus scattering (CE$\nu$NS) recently. We perform a systematical examination of the nuclear effect, which plays a crucial role in evaluating the…

High Energy Physics - Phenomenology · Physics 2025-09-01 Jiajun Liao , Jian Tang , Bing-Long Zhang

We construct a spectral representation of neutrino propagator in matter moving with constant velocity, or in constant homogenious magnetic field. In both cases there exists definite 4-axis $z$ of complete polarization, such that…

High Energy Physics - Phenomenology · Physics 2021-10-15 A. E. Kaloshin , D. M. Voronin

We study the electromagnetic vertex function of a neutrino that propagates in an electron background in the presence of a static magnetic field. The structure of the vertex function under the stated conditions is determined and it is…

High Energy Physics - Phenomenology · Physics 2009-11-10 Jose F. Nieves

We discuss the nature of neutrino propagation in the presence of strong magnetic fields of Magnetars.

Astrophysics · Physics 2007-05-23 Sushan Konar