Remarks to the Problem of Neutrino Passing through Matter

A critical analysis of the mechanism of resonance amplification of neutrino oscillations in matter in two different approaches is presented. The first approach is based on the fact that weak interactions are chiral invariant and therefore these interactions not can generate neutrino mass at the exchange of W boson. Then only the neutrino momentum changes and not the neutrino mass, and the gain of neutrino oscillations in matter should not arise. The second approach is based on the fact that in Wolfenstein’s equation, which gives the resonant amplification of neutrino oscillations in matter, it is assumed that with the change of the neutrino energy only its mass changes, and its momentum remains unchanged. In fact, if the energy neutrinos in matter changes, then its momentum must also change. In this case, in the solution of the equation there is no appreciable enhancement of neutrino oscillations in the solar matter. Experimental status of the mechanism of resonant amplification of neutrino oscillations in matter at the enhancement of neutrino oscillations in the solar matter and at the so-called Day-Night effect. Experimental data on the detection of the gain of neutrino oscillations in solar matter have no indication on the presence of amplification . Observation of Day-Night effect is important, since it is a direct checking of the resonance mechanism . But the available experimental data also have no indication on the realization of this effect.

weak interactions, neutrino, neutrino mass, neutrino oscillations, neutrino oscillations in matter, neutrino mass in matter, enhancement of neutrino oscillations in matter, energy of neutrino interaction in matter