Question

what is antimatter how does it created

Answer 1

In modern physics, antimatter is defined as a material composed of the antiparticles of the corresponding particles of ordinary matter. Microscopic numbers of antiparticles are generated daily at particle accelerators and in natural processes like cosmic ray collisions and some types of radioactive decay, but only a tiny fraction of these have successfully been bound together in experiments to form anti-atoms. No macroscopic amount of antimatter has ever been assembled due to the extreme cost and difficulty of production and handling.