What other things we have to consider? Well, perhaps precise alignment of those two lattices, how fast those lattices must be put together and taking care that there won’t be any acceleration involved at certain time interval before the contact. All those things need in-depth research so I won’t ponder them too much at this point. However, in best case, only steady motion might be required.
What will happen at the impact? Obviously many, if not all, of those protons on the contact surfaces will annihilate immediately. Every pair of annihilating protons create three new mesons, which fly away from the annihilation point. Hydrogen atoms at the background have also the prefered orientation. High energy collisions between new mesons and remaining hydrogen atoms with the prefered orientation results new proton breakdowns.
Described chain reaction generates wanted bomb like behaviour. Blog posts in this series have pretty much described our collaboration team’s future experiments. There will be few very hard engineering issues a head, like the need for very precise alignments, possibly needed high pressure to align protons in wanted spin pattern, achieving non-accelerated motion etc. Interesting to see how things play out.