What three things can happen with the energy produced when two particles collide?

Question

Eg when two protons are accelerated and collide, producing protons as well as a proton-antiproton pair, what happens to the energy left over? I know it can be transferred to kinetic energy of the particles produced, what are the two other things that can happen to it?

Answer 1

1. the enrgy may be added
2. energy remains same
3. loss of energy