Also known as: ps.
PS stands for various terms. Discover the full forms, meanings, and possible interpretations of PS across different fields and industries.
Positronium is a system consisting of an electron and its anti-particle, a positron, bound together into an exotic atom, specifically an onium. The system is unstable the two particles annihilate each other to predominantly produce two or three gamma-rays, depending on the relative spin states.
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