What is produced when matter and antimatter destroy each other?

When matter and antimatter come into contact, they annihilate each other, producing energy in accordance with Einstein's equation (E=mc^2). This annihilation typically results in the production of high-energy photons, such as gamma rays. Additionally, other particle-antiparticle pairs may be created, depending on the energy involved in the interaction. The process is highly efficient, converting the mass of the matter and antimatter into pure energy.