Pair production is the creation of a particle-antiparticle pair from a high-energy photon, while annihilation describes the process in which a particle and antiparticle collide, resulting in their mutual destruction and the creation of gamma rays.
Pair production is the creation of a particle-antiparticle pair from a high-energy photon, while annihilation describes the process in which a particle and antiparticle collide, resulting in their mutual destruction and the creation of gamma rays.