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1965•Progress of Theoretical PhysicsOpen access

Electron Interaction and Positron Annihilation in Electron Gases

Akira Hatano, Hideo Kanazawa, Yukio Mizuno

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Abstract

An intutitive many-body treatment is presented of the distribution in the total momentum of two gamma rays emitted in annihilation of positrons in a gas of interacting electrons. This treatment results in a momentum distribution of photon pairs which is very close to that of the ideal Fermi distribution of quasi-electrons in the electron gas. This seems to be supported by Stewart's experiment for sodium metal.

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An intutitive many-body treatment is presented of the distribution in the total momentum of two gamma rays emitted in annihilation of positrons in a gas of interacting electrons. This treatment results in a momentum distribution of photon pairs which is very close to that of the ideal Fermi distribution of quasi-electrons in the electron gas. This seems to be supported by Stewart's experiment for sodium metal.

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Available abstract

An intutitive many-body treatment is presented of the distribution in the total momentum of two gamma rays emitted in annihilation of positrons in a gas of interacting electrons. This treatment results in a momentum distribution of photon pairs which is very close to that of the ideal Fermi distribution of quasi-electrons in the electron gas. This seems to be supported by Stewart's experiment for sodium metal.

Key concepts: Physics, Electron, Annihilation, Positron, Momentum (technical analysis), Atomic physics, Fermi gas, Fermi Gamma-ray Space Telescope

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