  The mass, energy and momentum of the neutrino of a true flavor have an
axial-vector nature. As a consequence, the left-handed truly neutral neutrino
in an axial-vector field of emission can be converted into a right-handed one
and vice versa. This predicts the unidenticality of masses, energies and
momenta of neutrinos of the different components. Recognizing such a difference
in masses, energies, momenta and accepting that the left-handed axial-vector
neutrino and the right-handed antineutrino of true neutrality refer to
long-lived C-odd leptons, and the right-handed truly neutral neutrino and the
left-handed axial-vector antineutrino are of short-lived fermions of C-oddity,
we would write a new CP-even Dirac equation taking into account the flavor
symmetrical axial-vector mass, energy and momentum matrices. Their presence
explains the spontaneous mirror symmetry violation, confirming that an
axial-vector current conservation law has never violated. They reflect the
availability of a mirror Minkowski space in which a neutrino is characterized
by left as well as by right space-time coordinates. Therefore, it is not
surprising that whatever the main purposes experiments about a quasielastic
axial-vector mass say in favor of an axial-vector mirror Minkowski space-time.
