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cosmology > fundamental constant > fine structure constant

Preferred term

fine structure constant  

Definition

  • In physics, the fine-structure constant, also known as the Sommerfeld constant, commonly denoted by α (the Greek letter alpha), is a fundamental physical constant which quantifies the strength of the electromagnetic interaction between elementary charged particles. (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Fine-structure_constant)

Broader concept

Entry terms

  • fine-structure constant

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URI

http://data.loterre.fr/ark:/67375/MDL-CR9XT0JG-5

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