Velocity and particle collisions

[petrushka.googol]

Will the emitted radiation and / or particles change if say two neutrons are collided inside an accelerator at different speeds ? eg) 0.95 c versus 0.99c

[Klaynos]

Yes. The amount of energy involved is massively different between the two situations.

[Strange]

Yes, because of the much greater kinetic energy at the higher speed. This is why larger and larger accelerators have been built. Higher energy allows smaller sizes to be probed.

http://www.slac.stanford.edu/pubs/beamline/27/1/27-1-panofsky.pdf

 

(But note that you can't accelerate neutrons as they are uncharged.)