fine structure constant
The fine structure constant, often denoted by the symbol α (alpha), is a fundamental constant in physics that characterizes the strength of the electromagnetic force between charged particles. It describes the probability of an electron emitting or absorbing a photon, as well as the splitting of spectral lines in an atom due to electron interactions. With a value of approximately 1/137, it plays a crucial role in understanding the behavior of particles and the structure of matter in the universe.
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