About: Electron-positron annihilation   Sponge Permalink

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Electron-positron annihilation occurs when an electron and a positron (the electron's anti-particle) collide. The result of the collision is the conversion of the electron and positron and the creation of gamma ray photons or, less often, other particles. The process must satisfy a number of conservation laws, including: * Conservation of charge. The net charge before and after is zero. * Conservation of linear momentum and total energy. This forbids the creation of a single gamma ray. * Conservation of angular momentum.

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  • Electron-positron annihilation
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  • Electron-positron annihilation occurs when an electron and a positron (the electron's anti-particle) collide. The result of the collision is the conversion of the electron and positron and the creation of gamma ray photons or, less often, other particles. The process must satisfy a number of conservation laws, including: * Conservation of charge. The net charge before and after is zero. * Conservation of linear momentum and total energy. This forbids the creation of a single gamma ray. * Conservation of angular momentum.
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dbkwik:physics/pro...iPageUsesTemplate
abstract
  • Electron-positron annihilation occurs when an electron and a positron (the electron's anti-particle) collide. The result of the collision is the conversion of the electron and positron and the creation of gamma ray photons or, less often, other particles. The process must satisfy a number of conservation laws, including: * Conservation of charge. The net charge before and after is zero. * Conservation of linear momentum and total energy. This forbids the creation of a single gamma ray. * Conservation of angular momentum. As with any two charged objects, electrons and positrons may also interact with each other without annihilating, in general by elastic scattering.
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