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The magnetic field in the convective zone of the Sun has a random small-scalecomponent with the r.m.s. value substantially exceeding the strength of aregular large-scale field. For two Majorana neutrino flavors $\times$ twohelicities in the presence of a neutrino transition magnetic moment and nonzeroneutrino mixing we analyze the displacement of the allowed ($\Delta m^2-\sin^22\theta$)-parameter region reconciled for the SuperKamiokande(SK) andradiochemical (GALLEX, SAGE, Homestake) experiments in dependence on the r.m.s.magnetic field value $b$, or more precisely, on a value $\mu b$ assuming thetransition magnetic moment $\mu = 10^{-11}\mu_B$. In contrast to RSFP inregular magnetic fields we find an effective production of electronantineutrinos in the Sun even for small neutrino mixing through cascadeconversions $\nu_{eL}\to \nu_{\mu L}\to \tilde{\nu}_{eR}$, $\nu_{eL}\to\nu_{\mu R}\to \tilde{\nu}_{eR}$ in a random magnetic field that would be asignature of the Majorana nature of neutrino if $\tilde{\nu}_{eR}$ will beregistered. Basing on the present SK bound on electron antineutrinos we havealso found an excluded area in the same $\Delta m^2,~\sin^22\theta$-plane andrevealed a strong sensitivity to the random magnetic field correlation length$L_0$.Comment: LaTex 36 pages including 14 PostScript figure

physical review. d. particles, fields, gravitation, and cosmology/physical review. d. particles and fields

Neutrino conversions in random magnetic fields and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mover><mml:mrow><mml:mi>ν</mml:mi></mml:mrow><mml:mrow><mml:mi>̃</mml:mi></mml:mrow></mml:mover><mml:mrow><mml:mi>e</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math>from the Sun

Neutrino conversions in random magnetic fields andν̃efrom the Sun