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Annihilation, in physics, reaction in which a particle and its antiparticle collide and disappear, releasing energy. The most common annihilation on Earth occurs between an electron and its antiparticle, a positron.
In particle physics, annihilation is the process that occurs when a subatomic particle collides with its respective antiparticle to produce other particles, such as an electron colliding with a positron to produce two photons.
Feb 15, 2022 · Annihilation occurs when a bit of matter meets up with its corresponding bit of antimatter. What happens is not destruction; it’s transformation. What emerges on the other side of the annihilation process is a new pair of particles.
The meaning of ANNIHILATION is the state or fact of being completely destroyed or obliterated : the act of annihilating something or the state of being annihilated. How to use annihilation in a sentence.
The term "annihilate" literally means "turn into nothing". However, when a particle and antiparticle collide, they clearly do not turn into nothing; they simply transform into different particles.
Annihilation is the point where two particles converge such that there is complete wave amplitude cancellation. The particles have completely minimized their amplitude (A=0). They cannot be detected with electromagnetic instruments, thus we believe these particles have disappeared.
noun. an act or instance of annihilating, or of completely destroying or defeating someone or something: the brutal annihilation of millions of people. the state of being annihilated; total destruction; extinction: fear of nuclear annihilation. Physics.
