2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/41440It is shown that the specific space distribution of the nucleon axial charge may lead to the significant reduction of the cross section of the reaction $p+p\to D+e^++ν$ and may provide the mechanism to explain observed deficit of solar neutrinos.4 pages, 1 figure, LatexHigh Energy Physics - Phenomenologytext