fine-structure constant Comparison Table

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fine-structure constant comparison table

Subject has uncertainty has definition has equation has value has symbol is a kind of is an instance of

atomic constant changes in value are due solely to an increase in measurement accuracy or convention fundamental physical constant

fine-structure constant 0.000000027 × 10^-3 A coupling constant e² / h bar c, approximately equal to 1/137 (where e is the electron charge, h bar is Plancks constant, and c is the speed of light), that measures the strength of the interaction between a charged particle and the electromagnetic field. 7.297352533 × 10^-3 α atomic constant

Subject	has uncertainty	has definition	has equation	has value	has symbol	is a kind of	is an instance of
atomic constant				changes in value are due solely to an increase in measurement accuracy or convention		fundamental physical constant
fine-structure constant	0.000000027 × 10^-3	A coupling constant e² / h bar* c, approximately equal to 1/137 (where e is the electron charge, h bar* is Plancks constant, and c is the speed of light), that measures the strength of the interaction between a charged particle and the electromagnetic field.		7.297352533 × 10^-3	α		atomic constant

Next atomic constant: Hartree energy Up: atomic constant Previous atomic constant: Fermi coupling constant