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High-Energy Particles as External Sources
Phys. Rev. D 5, 892 – Published 15 February, 1972
DOI: https://doi.org/10.1103/PhysRevD.5.892
Abstract
Using methods previously used to derive the relativistic eikonal approximation it is shown that high-energy particles are approximately equivalent to external moving point sources. This result is independent of the nature of the rest of the process involved, but holds only when the high-energy particle does not suffer significant changes in its four-momentum, nor changes in its internal state, during its interactions with the other particles.
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