What is This? Is It Possible?

In the previous post "Particle Collisions", the first example of two types of photons colliding resulted in this possibility with a single velocity swap,

It seems to be a photon that is not at light speed but stationary.  Photons are self propelling dipoles, which means immediately afterwards they are driven towards light speed again.  These particles are then detected as photons with low speed accelerating towards light speed.

Possible.