GUT

Science & Engineering abbreviation · Physics

GUT
Stands forGrand unified theory
CategoriesScience & Engineering

GUT stands for Grand unified theory, a physics abbreviation.

Proposed theory in which the strong, weak and electromagnetic forces merge into a single force at extremely high energies, about 10^16 gigaelectronvolts. Many GUTs predict that protons eventually decay, a process experiments have not detected.

Example: Super-Kamiokande's limits on proton decay have ruled out the simplest GUT.

Usage notes

Howard Georgi and Sheldon Glashow proposed the first GUT, based on the symmetry group SU(5), in 1974. Experiments show the proton lives longer than about 10^34 years if it decays at all. A GUT that also includes gravity would be a theory of everything.

More physics abbreviations

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  • FWHM – Full width at half maximum
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  • HEP – High-energy physics
  • HF – High frequency
  • IR – Infrared
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