  The spin projection of a massive particle onto its direction of motion is
called helicity (or "handedness"). It can therefore be positive or negative.
When a particle's helicity changes from positive to negative (or vice-versa)
due to its interaction with other particles or fields, we say there is a
helicity flip. In this work we show that such helicity flip can be seen for an
electron of $20 MeV$ of energy interacting with a charged scalar meson through
the exchange of a virtual photon. This photon {\it does not} necessarily need
to be Podolsky's proposed photon; in fact, it is independent of it.
