Constructing the theory of the standard model

Mary K. Gaillard, Paul George Langacker

Research output: Contribution to specialist publicationArticle


We begin with quantum electrodynamics (QED), which successfully combines classical electrodynamics, quantum mechanics, and special relativity. QED inherits the gaugetransformation symmetry-called U(1) in group-theoretical language-that classical electromagnetism possesses. QED is also renormalizable; that is, it is well defined mathematically: Infinities that appear at intermediate stages disappear when the theory is expressed in terms of a finite number of measured quantities, such as mass and charge.

Original languageEnglish (US)
Number of pages2
Specialist publicationPhysics Today
StatePublished - Feb 1 2019
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Gaillard, M. K., & Langacker, P. G. (2019). Constructing the theory of the standard model. Physics Today, 72(2), 52-53.