arXiv subjects

V. P. Zavarzina

Publications and source records attributed to V. P. Zavarzina.

3 recordsLinked to original sources

arXiv2020

On first detection of solar neutrinos from CNO cycle with Borexino

Borexino collaboration reported about first measurement of solar CNO-$ν$ interaction rate in Borexino detector. This result is consistent with Hydridic Earth model prediction about the contribution of $^{40}$K geo-antineutrino interactions in single Borexino events. The potassium abundance in the Earth in the range $1 ÷1.5$\% of the Earth mass could give the observed enhancement of counting rate above expected CNO-$ν$ counting rate. The Earth intrinsic heat flux must be in the range $200 ÷300$ TW for this potassium abundance. This value of the heat flux can explain the ocean heating observed by the project ARGO. We consider that Hydridic Earth model actually corresponds better to CNO-$ν$ Borexino results than Silicate Earth model.

hep-ex↗

arXiv2020

On the contribution of the $^{40}$K geo-antineutrino to single Borexino events

We propose to include in the analysis of Borexino single event energy spectrum the scattering of $^{40}$K geo-antineutrinos by scintillator electrons. The Hydridic Earth model predicts the concentration of potassium in modern Earth from 1\% to 4\% of the Earth mass. We calculated contribution of $^{40}$K geo-antineutrino interactions in single Borexino events for these concentrations. This contribution is comparable to the contribution from the interaction of CNO neutrinos. We discuss the reasons for using the Hydridic Earth model.

hep-ex↗

arXiv2016

Fitting of structural parameters to small angle neutron scattering data for nickel-chromium-aluminum alloy in frames of quantum mechanics and classic models of polydispersed spheres

Modified Yukawa's potential is used to fit model parameters of nucleus to the small angle thermal neutron scattering data on the nickel-chromium-aluminum alloy at the transferred momentum $Q$ and effective nucleus radius $R$ production satisfied by condition $Q R \le \hbar$. Analytical polydisperse sphere model is used to calculate a neutron scattering intensity and to determine most probable macroscopic sphere radius $R_0$ at $Q R_0 \ge 3\hbar$. Combination of gauss, Relay and Schulze-Zimm distributions can be used to fit model parameters to experimental data. Fast algorithm and program of fitting to data is proposed.

cond-mat.mtrl-sci↗