Question

what happens when two like charged particles is allowed to impact at high velocity under a light magnetic field? (if their is any impact formula please notify)

Answer 1

It can not be inferred in general. Depending on the type of particles colliding to each other, there might appear different results.

Answer 2

^^
thats right.
for example if you have protons, and you get the required velocity you may fuse them.. :D

Answer 3

so you are telling that two like particles fuse together??...actually is it possible??