  An analysis of known experiments on direct and indirect detection of the
electron-type neutrino and antineutrino has been made. The analysis based on a
new hypothesis that the observed physical space is formed from a finite set of
byuons, "one-dimensional vectorial objects". It is shown in the article that
the hypothesis for existence of neutrinos advanced by Pauli on the basis of an
analysis of the conservation laws, is not unquestionable since the fulfillment
of these laws may be secured by the physical space itself (physical vacuum)
being the lowest energy state of a discrete oscillating system originating in
the course of byuon interaction. This effect is analogous to that of
M\"ossbauer. The direct experiments on detecting neutrinos are explained from
the existence of a new information channel due to the uncertainty interval for
coordinate of the four-contact byuon interaction forming the interior geometry
of elementary particles and their properties. Given are also the results of an
experiment on observation of cyclic variations of the $\beta$-decay rate, which
confirm the existence of said new information channel.
