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Particle physics is the study of the fundamental forces of nature as they are embodied in the interactions of elementary and composite particles at high energies and short time and distance scales. DO NOT USE THIS TAG for point particles in classical mechanics.
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Virtual particles and Heisenberg's uncertainty principle [duplicate]
Introduction
Virtual particles are particles which doesn't obey the energy–momentum relation: \begin{align}E^2=(mc^2)^2+(pc)^2\end{align}This is possible if it happens short enough time. Often Heisen …