Determination of Probabilistic Parameters in the Neutrino–Antineutrino System

Using some results of our previous investigations, we calculate the probabilistic parameters describing the transformations ν_i → ν_j, \({{\bar {\nu }}_{i}}\) → \({{\bar {\nu }}_{j}}\) (i, j = e, μ, τ; i ≠ j), and ν_i \( \leftrightarrow \) \({{\bar {\nu }}_{j}}\) (i, j = e, μ, τ), which occur, among other things, with the nonconservation of the neutrino lepton numbers, as well as average numbers of ν and \(\bar {\nu }\) . A possible contribution of such mutual transformations to the known effect of solar neutrino deficit is considered.