Written by the Fiveable Content Team • Last updated August 2025
Verified for the 2027 exam
Verified for the 2027 exam•Written by the Fiveable Content Team • Last updated August 2025
Definition
A process in which a particle and its antiparticle collide and convert entirely into energy in the form of photons, governed by mass-energy equivalence.
AP course connection
Topic 15.7: 15.7 Fission, Fusion, and Nuclear Decay