  This letter proposes an alternative quantum mechanical picture for the
observed phenomena of neutrino oscillations. It is assumed in the following
that neutrinos interact via diabatic (or localised) interactions with a new
particle field, which changes their flavor. Furthermore, it is assumed that
each neutrino flavor state can only have a single associated mass thereby
making them fundamental particles of nature. The effective masses associated
with matter interactions replace the concept of neutrino mixing angles.
Preliminary evidence that left-handed neutrinos and right-handed antineutrinos
oscillate differently is presented, implying charge-parity violation. Given the
apparent anomalous observations of some neutrino oscillation experiments, which
have led to speculations about the existence of a fourth (sterile) neutrino, it
is worth examining the oscillation behavior predicted by alternative mechanisms
to determine if they more naturally explain the available data.
