= Gauge theory
{wiki=Gauge_theory}
Gauge theory is a type of field theory in which the Lagrangian (the mathematical function that describes the dynamics of the system) is invariant under certain local transformations, or "gauge transformations." These transformations can vary from point to point in spacetime and are foundational to our understanding of fundamental forces in physics, particularly in the framework of particle physics and the Standard Model. \#\#\# Key Concepts 1.
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