Positronium: A Review of the Calculations.
Environmental research papers,
AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS
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For typical magnetospheric densities, free positrons have a lifetime of between one million and one trillion seconds. A portion of the injected positrons undergo free annihilation and a portion form positronium. Results are given of the theoretical calculations of positronium properties without presenting the intermediate steps that depend on a knowledge of quantum electrodynamics. This paper is a review of the calculations of positronium state 1 decay rates, 2 energy levels, and 3 external field behavior. Theoretical results are compared with only the latest experimental results. The coverage is substantially complete from the pre-experimental years 1930 to 1950 to the present 1974. Emphasis is placed on stating final theoretical results and giving references to original work rather than giving a step-by-step account of the calculations. Modified author abstract
- Atmospheric Physics
- Nuclear Physics and Elementary Particle Physics