Is Electron and Positron Annihilation?

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.

When an electron and positron is annihilate?

Electron-positron annihilation is the process in which a positron collides with an electron resulting in the annihilation of both particles. Electrons (or β- particles) and positrons (or β+ particles) are of equal mass but opposite charge. Positrons are the antimatter equivalent of an electron, produced from B+ decay.

What happens when positron and electron collide?

When an electron and positron (antielectron) collide at high energy, they can annihilate to produce charm quarks which then produce D⁺ and D^- mesons.