Abstract
We analyze various channels for the annihilation of positrons with atomic electrons. Since in the annihilation process a large energy exceeding 1 MeV is released, relativistic analysis is required even in the case of slow positrons. We study in detail the dominative two-photon annihilation process on the Bethe ridge and outside it. We calculate the characteristics of single-quantum annihilation and annihilation followed by knockout of a bound electron to the continuum. In the latter case, the role of the QFM mechanism described in Chap. 9 is important. We consider also annihilation followed by creation of a \(\mu ^+\mu ^{-}\) pair and annihilation accompanied by creation of a mesoatom.
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Drukarev, E.G., Mikhailov, A.I. (2016). Annihilation of Positrons with Atomic Electrons. In: High-Energy Atomic Physics. Springer Series on Atomic, Optical, and Plasma Physics, vol 93. Springer, Cham. https://doi.org/10.1007/978-3-319-32736-5_11
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DOI: https://doi.org/10.1007/978-3-319-32736-5_11
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