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abstraction > mathematical concept > number > constant > fundamental physical constant > atomic constant > Fermi coupling constant

Fermi coupling constant comparison table

Subject	has equation	is an instance of	has uncertainty	is a kind of	has symbol	has value
atomic constant				fundamental physical constant		changes in value are due solely to an increase in measurement accuracy or convention
Fermi coupling constant		atomic constant	0.00001 × 10-5 GeV-2		Gf/(hc)3	1.16639 × 10-5 GeV-2

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