Method of wave equations exact solutions in studies of neutrinos and electrons interaction in dense matter

Studenikin, Alexander

doi:10.1088/1751-8113/41/16/164047

Cited by 31 publications

(55 citation statements)

References 69 publications

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“…In the case of ultra-high energy neutrino (i.e., in the only case when the time scale of the process can be much less than the age of the Universe) the SLν rate of [151] exactly reproduces the result obtained in [144]. For a more detailed discussion on the historical aspects of this issue see [147][148][149].…”

Section: Neutrino Radiative Decay and Other ν → ν + γ Processessupporting

confidence: 69%

“…The SLν in gravitational fields has been studied (see the second paper of [139]), for the first time, on the basis of a neutrino spin evolution equation (147). Some general aspects of chiral dynamics for a neutrino non-minimally coupled with an external magnetic field have been discussed in [143].…”

Section: Neutrino Radiative Decay and Other ν → ν + γ Processesmentioning

confidence: 99%

“…As it was clear from the very beginning [127], the SLν is a quantum phenomenon by its nature. The quantum theory of this radiation has been elaborated [144] (see also [145]) within a development [129,146,147,150] states (shown by "broad lines") are exact solutions of the corresponding Dirac equations accounting exactly for the interaction with matter. The amplitude of the SLν process is given by…”

Section: Neutrino Radiative Decay and Other ν → ν + γ Processesmentioning

confidence: 99%

“…At the same time, for a wide range of matter densities these characteristics of radiation are increasing with the neutrino momentum. One may expect [127][128][129]139,[144][145][146][147][148][149][150] that this radiation can be produced by high-energy neutrinos propagating in different astrophysical and cosmological environments. In the most interesting for possible astrophysical and cosmology applications case of ultra-high energy neutrinos, the average energy of the SLν photons is one third of the neutrino momentum, so that in principle the SLν spectrum spans up to the range peculiar of gamma-rays.…”

Section: Neutrino Radiative Decay and Other ν → ν + γ Processesmentioning

confidence: 99%

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Neutrino electromagnetic properties

2009

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The main goal of the paper is to give a short review on neutrino electromagnetic properties. In the introductory part of the paper a summary on what we really know about neutrinos is given: we discuss the basics of neutrino mass and mixing as well as the phenomenology of neutrino oscillations. This is important for the following discussion on neutrino electromagnetic properties that starts with a derivation of the neutrino electromagnetic vertex function in the most general form, that follows from the requirement of Lorentz invariance, for both the Dirac and Majorana cases. Then, the problem of the neutrino form factors definition and calculation within gauge models is considered. In particular, we discuss the neutrino electric charge form factor and charge radius, dipole magnetic and electric and anapole form factors. Available experimental constraints on neutrino electromagnetic properties are also discussed, and the recently obtained experimental limits on neutrino magnetic moments are reviewed. The most important neutrino electromagnetic processes involving a direct neutrino coupling with photons (such as neutrino radiative decay, neutrino Cherenkov radiation, spin light of neutrino and plasmon decay into neutrino-antineutrino pair in media) and neutrino resonant spin-flavor precession in a magnetic field are discussed at the end of the paper.

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Section: Neutrino Radiative Decay and Other ν → ν + γ Processessupporting

confidence: 69%

Section: Neutrino Radiative Decay and Other ν → ν + γ Processesmentioning

confidence: 99%

Section: Neutrino Radiative Decay and Other ν → ν + γ Processesmentioning

confidence: 99%

Section: Neutrino Radiative Decay and Other ν → ν + γ Processesmentioning

confidence: 99%

See 2 more Smart Citations

Neutrino electromagnetic properties

2009

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“…For example, as was found in Ref. [38], very low-energy antineutrinos can be captured inside a rotating PNS. The characteristic length scale associated with gravity or rotation of PNS is in the km range.…”

Section: Discussionsupporting

confidence: 58%

Creation of Dirac neutrinos in a dense medium with a time-dependent effective potential

2014

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We consider Dirac neutrinos interacting with background fermions in the frame of the standard model. We demonstrate that a time-dependent effective potential is quite possible in a protoneutron star (PNS) at certain stages of its evolution. For the first time, we formulate a nonperturbative treatment of neutrino processes in a matter with arbitrary time-dependent effective potential. Using linearly growing effective potential, we study the typical case of a slowly varying matter interaction potential. We calculate differential mean numbers of νν pairs created from the vacuum by this potential and find that they crucially depend on the magnitude of masses of the lightest neutrino eigenstate. These distributions uniformly span up to ∼ 10 eV energies for muon and tau neutrinos created in PNS core due to the compression just before the hydrodynamic bounce and up to ∼ 0.1 eV energies for all three active neutrino flavors created in the neutronization. Considering different stages of the PNS evolution, we derive constraints on neutrino masses, mν (10 −8 − 10 −7 ) eV, corresponding to the nonvanishing νν pairs flux produced by this mechanism. We show that one can distinguish such coherent flux from chaotic fluxes of any other origin. Part of these neutrinos, depending on the flavor and helicity, are bounded in the PNS, while antineutrinos of any flavor escape the PNS. If the created pairs are νeνe, then a part of the corresponding neutrinos also escape the PNS. The detection of ν andν with such low energies is beyond current experimental techniques.

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Particle Dispersion in External Active Media

Кузнецов

Михеев

2013

Springer Tracts in Modern Physics

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Method of wave equations exact solutions in studies of neutrinos and electrons interaction in dense matter

Cited by 31 publications

References 69 publications

Neutrino electromagnetic properties

Neutrino electromagnetic properties

Creation of Dirac neutrinos in a dense medium with a time-dependent effective potential

Particle Dispersion in External Active Media

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