arXiv subjects

I. O. Boyarkina

Publications and source records attributed to I. O. Boyarkina.

3 recordsLinked to original sources

arXiv2023

Neutrino oscillations in vortex and twisting magnetic fields

The behavior of the neutrino flux in vortex and twisting magnetic fields is considered within the left-right symmetric model. By way of illustration of the magnetic fields we discuss the magnetic fields of the coupled sunspots (CS's) which are the sources of the future solar flares. It is expected that the neutrinos have such multipole moments as the charge radius, the magnetic and anapole moments. The evolution equation in the Schrodinger-like form is found and all magnetic-induced resonance conversions are analyzed. It is demonstrated that in the case of the high-energy flares the sizeable depletion of the $ν_{eL}$ neutrinos caused by their resonance absorptions takes place. Possibilities of observations of this phenomena are investigated at neutrino telescopes whose work is based on the reaction of the coherent elastic neutrino-nucleus scattering.

hep-ph↗

arXiv2020

Solar neutrinos as indicators of the Sun's activity

Opportunity of the solar flares (SF's) prediction observing the solar neutrino fluxes is investigated. In three neutrino generations the evolution of the neutrino flux traveling the coupled sunspots (CS's) which are the SF source is considered. It is assumed that the neutrinos possess both the dipole magnetic moment and the anapole moment while the magnetic field above the CS's may reach the values $10^5-10^6$ Gs, displays the twisting nature and has the nonpotential character. The possible resonance conversions of the solar neutrino flux are examined. Since the $ν_{eL}\to ν_{μL}$ resonance takes place before the convective zone, its existence can in no way be connected with the SF. However, when the solar neutrino flux moves through the CS's in the preflare period, then it may undergo the additional resonance conversions and, as a result, depleting the electron neutrinos flux may be observed.

astro-ph.SR↗

arXiv2017

Solar flares and their associated processes

The evolution of the solar neutrino flux which is described by the wave function $Ψ^T=(ν_{eL},ν_{XL}, \overlineν_{eL}, \overlineν_{XL})$ is examined. Our treatment of the problem holds for any standard model (SM) extensions possessing nonzero dipole magnetic and anapole moments. When the solar neutrino flux moves through the solar flare (SF) region in the preflare period, then it undergoes the additional (compared with the SM) resonance conversions. As a result, the weakening the electron neutrinos flux takes place. On the other hand, existence of the additional resonances lead to appearance of the $\overlineν_{eL}$ and $\overlineν_{XL}$ neutrinos that could be detected by the terrestrial detectors. The hypothesis of the $ν_e$-induced $β$-decays is also discussed. According to it, before the large SF, decreasing the $β$-decay rate for some elements takes place. The possible influence of the electron antineutrino flux produced in the superflares on the regime of the hypothetical georeactor is considered.

hep-ph↗