Polarization Effects in the Two-Quantum Annihilation of Positrons
- 1 May 1957
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 106 (3), 394-398
- https://doi.org/10.1103/PhysRev.106.394
Abstract
Computations of two-quantum annihilation-in-flight of a positron with an electron are made with little averaging of spins or summing of photon polarizations. For energies of a few Mev, strong departures are found from the better known situation at vanishing energy, as regards annihilation probability for parallel spins, the plane-polarization correlation, and the circular-polarization correlation. Production of a circularly polarized photon beam is discussed, as is longitudinal- or transverse-polarization analysis by a polarized electron target.Keywords
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