An enormous number of experiments have been done over the years where the experimenters collide nuclei from a particle accelerator with a target. Typically nuclear reactions take place with a very low cross section. This is proof as good as any to most scientists and lay people that fusion is caused by banging nuclei into one another. I would like to propose a different mechanism for why fusion occurs in these experiments, and that is that the nuclei are actually standing still or nearly so, when they fuse. I see it like this; the energy of the projectile nuclei is completely or almost so, transformed into bremsstrahlung as they approach a highly charged target nucleus. In order for this to occur the trajectory must be exactly in the direction of one target nucleus, therefore the low cross section. It's rare simply!
Can someone disprove this model with logic and theory or experimental results?
This is based on the physics of Charles S. Cagle. When a pair of nuclei are very close in momentum space they will have a de Broglie wavelength that is greater than the interparticle distance and become attractively interactive and fuse.
It all boils down to; how do you actually know what is going on inside the lithium crystal that you just irradiated with deuterons and where fusion reactions apparently occurred?