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arXiv · 1507.05453

Annihilation of Relativistic Positrons in Single Crystal with production of One Photon

Nikolay Kalashnikov·Evgeny Mazur·Andrzej Olczak
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Abstract

The energy and momentum conservation laws prohibit positron-electron annihilation in vacuum producing the single photon only. It can produce two photons in vacuum, or the process is possible with a participation of the third body. The situation is different in a single crystal with one of the leptons (e.g. positron) moving in the channeling (or in the quasi-channeling) mode when the transverse motion of a particle is bound or sufficiently uneven. It may increase sharply the probability of the single photon annihilation process.

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Nikolay Kalashnikov, Evgeny Mazur, Andrzej Olczak. 2015-07-20. Annihilation of Relativistic Positrons in Single Crystal with production of One Photon. https://doi.org/10.1142/s0217751x15501377

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