The Fine Structure Constant, denoted by the symbol α (alpha), is a dimensionless physical constant that characterizes the strength of the electromagnetic interaction between elementary particles.
The accepted value of the Fine Structure Constant is approximately 1/137 or 0.0072973525693. It is a fundamental constant of nature and does not depend on any unit system.
The Fine Structure Constant is related to other fundamental constants such as the speed of light, Planck's constant, and the elementary charge. It is also related to the coupling constant of the strong nuclear force.
The Fine Structure Constant plays a crucial role in determining the behavior of atoms, molecules, and the structure of matter. It also plays a role in the formation of stars, galaxies, and the universe as a whole.
Yes, the Fine Structure Constant has been measured to extremely high precision through various experiments and calculations. However, there is still ongoing research to improve the accuracy of its value even further.